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...To: Re:
Course Participants Lecture Notes Part I Chapter 5
From: Trond Petersen
Topic: Sample Statistics and Population Parameters
Agenda:
V.
Sample Statistics and Population Parameters
V.
Sample Statistics and Population Parameters
A large ...
...To: From: Course: RE: Topic:
Course Participants Trond Petersen Basic Statistics Lecture Notes Chap. 12 Elements of Probability Theory
1.
The Chain Rule:
CR
A favorite rule is the chain rule (CR). Let A and B be two events, for example, being bl...
...To: From: Course: RE: Topic:
Course Participants Trond Petersen Basic Statistics Lecture Notes Chap. 13 Chi-square Test for Independence in Contingency Tables
Introduction In chapter 10 we discussed how to test whether two proportions in a table ca...
...To: From: RE: Topic:
Course Participants Trond Petersen Lecture Notes Linear Regression Analysis
Chapter 1: Introductory Remarks
Agenda:
1.
Introduction to Topic
1.1. Motivation 1.2. Basic Ideas 1.3. Outline
1.1.
Motivation
Often one wants t...
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in Halloween Madison . . . I really don't know if the experience can be described in words. Those participating in the event (students) seemed to be rowdy and uninhibited. The police officers seem to be a bit more rigid looking. There are police officers every couple of business entryways and scattered through the crowd. There are also officers on horses riding through the crowd. Depending on which police officers you look at or talk to, it's sort of like the Mifflin Street Block Party, some are jovial and seem to be happy to be there, willing to joke around and take pictures with rowdy, drunk participants, and others seem to be on a mission to give out as many tickets or arrest as many people as possible. State Street smells like a dirty house party, meaning stale beer and sweaty alcohol, even though it's freezing outside. There is an ungodly amount of people all around and it's next to impossible to walk two steps without running into someone (or someone drunk actually running into you.) I'm not a claustrophobic person, but it got a little intense on State Street, it could have just been all of the people, but I think that it was more of all of the people plus the costumes. Every once in a while you'd see a random drunkard run down State Street one way screaming something, or you'd see some police officers dumping out a bottle or can and plastic-handcuffing the (usually) drunk person and carting them off to the University Hotel (a.k.a., the make-shift police station for the night). In his article, Sexton talks about the cultural ethos of the Cajun French as being laisser les bon temps rouler ("let the good times roll") and joie de vivre ("joy of life/living") . . . but that's not how it is here during Halloween. Our aphorism tends to be more "Work hard, play hard," and here at Madison, that's what we tend to do. How else would be we get not only the number 1 party school in the nation but also have some of the highest academic standards for a public university? Also, Sexton talks about how easily accessible liquor is in the south. Here, it's not that easy to get (depending on who you are and where you're at). In the south, they have drive through Daiquiri shops, liquor stores, convenience stores and gas stations, here, you can only buy liquor until 9 pm, and most places you go will ask for at least one form of id, if not a second also, then possibly try to quiz you what's on your id if they think it looks suspicious. Sexton also talks about how although some drinking is tolerated and sometimes encouraged in the Cajun culture; excessive drunkenness, violent behavior and inability to fulfill social and familial obligations are stigmatized. Again, during Halloween, that isn't so much the case here, in fact, it's kind of the opposite. From my experiences here with Halloween weekend, people try to get arrested or try to see who can black out first. Excessive drunkenness is encouraged during Halloween here, and if you aren't markedly drunk, you are stigmatized. Sexton also talks about the Tee Mamou Mardi Gras band, and how they are exclusively male, and how they are "run" by a captain who gets to lay out the rules before they go on their "runs." The only people that "lay out the rules" for Halloween are city officials and police officers that think they know what's going on or going to happen. I think that's the biggest problem with Halloween here, the people in charge overreact and try to stop things that aren't happening or aren't going to happen and put all of these ideas into drunk kids minds. It's like adding gasoline to a fire. The rioting has become a joke during Halloween, the kids expect to be sprayed with pepper spray, so why not do things to warrant it if it's going to happen inevitably? I'll constantly use the example of students drinking on campus. The kids who have the straight-as-arrow parents, who were angels in high school, never did anything remotely rebellious come here to school and freak out. Those are the kids that get so drunk they fall off balconies, try out illegal drugs and overdose, or get sent to detox before classes even start. They are like 3 year old children, the more you tell them no, the more they act out, or the second the "leash" is off, they run free and get into trouble! The difference between what Sexton described and what goes on here at Halloween definitely differs in males and females also. what From I read, Sexton described predominantly men participating in the events of Mardi Gras especially with the Tee Mamou group, again here, not so much the case. Both women and men freely participate in the Halloween festivities here on campus. I will argue though, that the men seem to get into more trouble and participate in much more idiotic activities. Take for example, the fires that were started the year before last, any picture you saw was of some idiot boys screaming and jumping around it (or over it for that matter). One thing I find particularly interesting is that during the Tee Mamou's "run," they take time out and eat. I think that is another one of the biggest problems with Halloween (mainly drinking) here. The people who participate in events like this start drinking early in the morning and somehow "forget" to eat, whether that is because they don't have enough money to go out and buy food because they've spent so much money on alcohol, or because they're too wasted to actually make anything for themselves, I don't know. I'm sure if there were designated "eating times" or free food at bars, people wouldn't get so drunk and potentially not get so stupid! I will agree with Sexton's argument though, about how its not necessarily how much a person drinks that contributes to their stupidity, and in fact, it's usually those that don't drink all that much that do the most stupid things. For some reason, just a little bit of alcohol seems to "free" ones inhibitions, and some people just seem to go crazy. As for Redmon's study, he seemed to study mainly females and their "lack of self control" during Mardi Gras. I think during Halloween at Madison, the males are more lacking in self-control, but to quote the greatest movie ever made; "Halloween is the one night a year when girls can dress like a total slut and no other girls can say anything about it." I totally agree with that, and well, girls at Madison during Halloween definitely take full advantage of that. I don't think there is as much "flashing" as Redmon describes in his study about Mardi Gras, but definitely less clothing. Plus, the girls here for Halloween don't get beads like they do at Mardi Gras! Redmon did seem to find though that the more a person reported using drugs or alcohol, or the more times a person reported getting into fights, the more likely they were to perform a lewd act at Mardi Gras. This could be similar to Halloween here. I think the more students that drink every other day of the year, or the more students that have gotten drinking tickets of some sort before are more likely to get in trouble during Halloween weekend here. This year, I actually didn't stay on State Street long enough to see "the riot." But from my experience the previous year, I think the police definitely overreacted. They were armed and ready long before any real "riot" broke out. I'm not saying it's a bad thing for them to be prepared, but they definitely started shooting the pepper spray before anyone was really out of line. I think that was the main cause for the problems that happened in 2004, and any problems that happened this year also. Students were prepared this year too; they figured they were going to get sprayed anyway, so why not make the most of it, right? It's like if you know you're going to die in a few weeks, wouldn't you live your life to the absolute fullest and do all of the crazy and risky things you might not do if you didn't know that your life was going to end anyway? I don't think I took as much away from this assignment as I thought I would. Halloween in Madison isn't all that exciting to me, and honestly, if I wouldn't have had to do this assignment, I probably would have skipped it all together. I think I would like to know more about what the police are thinking during the entire weekend, and if at all they wish they could be on the other side, meaning, part of the party instead of part of the "clean up." I think that kids from other schools really ruin our Halloween festivities here more and more each year, and every year, the administration and the public officials are going to keep trying to clamp down harder and harder, and really, we're the only ones that are paying for it in the long run. The other kids get to go back to their schools and be fine, while we have to deal with the repercussions, and I don't think that's very fair.
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Cornell >> PHYS >> 1112 (Spring, 2007)
Monday Apr 2, 2007 Angular Momentum Read: (Today) 10.5 (Wednesday) 11.1-11.3 Homework 10: Due Monday April 9 Prelim 2: Thursday Chapters 6,7,8,9 Bring 1/2 page formula sheet Bring pencils, pens, ruler, protractor ...
Cornell >> PHYS >> 1112 (Spring, 2007)
Wednesday Apr 4, 2007 Statics I Read: (Today) 11.1-11.3 (Friday) 11.3 Homework 10: Due Monday April 9 Prelim 2: Tomorrow Chapters 6,7,8,9 Bring 1/2 page formula sheet Bring pencils, pens, ruler, protractor ...
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Monday Apr 9, 2007 Statics II Read: (Today) 11.3 (Wednesday) 10.4, 10.5 Homework 10: Due Today Homework 11: Due Friday Lab 7: This Week Recitation: Bring Tutorial Book ...
Cornell >> PHYS >> 1112 (Spring, 2007)
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Cornell >> PHYS >> 1112 (Spring, 2007)
How to Solve a Physics Problem [Also works for other subjects] [Also see page 4 of your textbook.] Explicitly go through each of these steps. Write down something on paper after doing each step. Note that we do not write any equations until step 5 or...
Cornell >> PHYS >> 1112 (Spring, 2007)
P112 Prelim Exam #1 - Solutions 1. 2. 3. 4. 5. (a) C (b) A (2 points each) Spring 2005 F (5 points) (a) (a) (a) (c) [2 points for E, G, or H] (b) A F A (3 points) (c) C (d) B (2 points each) D (2 points) C A (b) (b) (3 points for correct constru...
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Physics 112 - Exam #1 Solutions 1. 2. (a) C (b) B Fall 2005 Point #1: F buoy fd Point #2: F buoy Point #3: F buoy fd (1 point for each correctly identified force, direction, and magnitude) w w w 3. 6. A E 4. C (1 point for B or D) G 5...
Cornell >> PHYS >> 1112 (Spring, 2007)
Solutions Prelim I Spring 2007 1. speeding up, slowing down, slowing down, speeding up 2. (A) 3. (B) 4. (B) 5. (C) 6. (E) 7. (C) 8. (A) 9.(a) down, up, zero 9.(b) down, up, up 1. (a) vA = vA^ = v0x^ is also the initial velocity of the bale. The time ...
Cornell >> PHYS >> 1112 (Spring, 2007)
Monday Jan 29, 2007 Vectors Subtraction Components Products 3D kinematics Sample problem Read: (Today) 3.1-3.3 (Wednesday) 3.5 Homework 2: Due Friday Recitations: Bring Tutorial Book Labs: Start Feb 5 Are you registered for lab? ...
Cornell >> PHYS >> 1112 (Spring, 2007)
Homework assignments: Posted on web - 2 weeks before due date (except for first assignment). Due every Friday in lecture. First HW Due this Friday! Cooperative Learning Problems/Tutorials: Assigned in recitation. You\'ll work on them in teams. Gradi...
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Physics Problem Worksheet Known Quantities Unknown Quantities Diagram Chain Connecting Known and Unknown Quantities (Possibly) Required Equations Final Equation Numerical Calculation Makes Sense? Use as many sheets as you need ...
Cornell >> PHYS >> 1112 (Spring, 2007)
Lecture 11 P112 Feb 14, 2007 Announcements Prelim 1 on Mar 1 HW 4 due on Friday Lab 3 this week! Lab 4 next week Want to choose the pre-lecture music? Bring up your music player before class. Agenda for today Tools: Springs, Ropes, Pulleys Statics ...
Cornell >> PHYS >> 1112 (Spring, 2007)
R/2 R Two wheels, of radius R and R/2, are connected by a belt. The large wheel is turned at angular velocity . What is the angular velocity of the smaller wheel? 1. ( /2) 4. 0 2. 5. Other 3. (2 ) ...
Cornell >> PHYS >> 1112 (Spring, 2007)
Wednesday Jan 31, 2007 Relative Motion Read: (Today) 3.5 (Friday) 3.3 Homework 2: Due Friday Recitations: Bring Tutorial Book Labs: Start Feb 5 Are you registered for lab? ...
Cornell >> PHYS >> 1112 (Spring, 2007)
Identify forces by: (1) Type of Interaction (symbol) (2) Direction (vector arrow) N (4) Body providing the force (subscript) Table (on Book) (3) Body on which the force acts (The force goes on the Free-Body Diagram for this body.) ...
Cornell >> PHYS >> 1112 (Spring, 2007)
Lecture 28 Apr 4, 2007 P112 Announcements Prelim II Thursday, 7.30-9pm Bring: non-graphing calculator, ruler Your own 5.5x8.5 inch formula sheet Material covered: everything since last prelim (not this week\'s material) Review session Agenda: Torqu...
Cornell >> PHYS >> 1112 (Spring, 2007)
Lecture 32 Apr 11, 2007 P112 Announcements Evaluation Forms Agenda for today Work in Rotational Motion Gyroscopic motion Work in Rotational Motion Work done by a tangential force (constant torque) dW = Ftan Rd dW = z d 2 W = 1 z d 2 1 W = z ...
Cornell >> PHYS >> 1112 (Spring, 2007)
Drag Forces - Oppose motion of an object through a fluid (liquid or gas). 2 Approximate Force Laws: Linear drag: fd = bv fd v (rel. to fluid) low speeds, viscous fluids (biological microorganisms) 2 Quadratic drag: with D = 1 2 fd = Dv Cd A hig...
Cornell >> PHYS >> 1112 (Spring, 2007)
Chris and Pat are on a cart that can roll without resistance on a level surface. Everything is initially at rest. Then Chris throws a massive ball to Pat with speed v relative to the surface. After Pat catches the ball, the cart has moved: (1) (2) (3...
Cornell >> PHYS >> 1112 (Spring, 2007)
A car travels up a hill at constant speed. The force acting on the car that propels it up the hill is: (0) a contact force due to the air (1) a gravitational force due to the Earth (2) a static friction force due to the road (3) a kinetic friction f...
Cornell >> PHYS >> 1112 (Spring, 2007)
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Cornell >> PHYS >> 1112 (Spring, 2007)
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Cornell >> PHYS >> 1112 (Spring, 2007)
v You push a block at constant speed along a table for a distance of 1m. You apply a constant Force of 10N. How much Work does your hand do on the block? (1) (2) (3) (4) W=0 W=10J W=-10J Other ...
Cornell >> PHYS >> 1112 (Spring, 2007)
...
Cornell >> PHYS >> 1112 (Spring, 2007)
P112 Spring 2007 Homework #1 Solutions (of boxed problems only) 3. Total distance is 20 miles, total time is 1.5 h. Average speed is 13.3 miles per hour. 5. Plot of f(x) in the range of 0<x<5: f(x) x 7. a) One can \"guard\" about 10 parking spaces b) ...
Cornell >> PHYS >> 1112 (Spring, 2007)
Homework assignments: Posted on web - 2 weeks before due date (except for first assignment). Due every Friday in lecture. First HW Due this Friday! Cooperative Learning Problems/Tutorials: Assigned in recitation. You\'ll work on them in teams. Gradi...
Cornell >> PHYS >> 1112 (Spring, 2007)
Lecture 6 P112 Feb 2, 2007 Agenda for today: Projectiles: Motion in 2D and 3D Projectile is a body that is given initial velocity and follows a path (\"trajectory\") determined entirely by gravitational acceleration. Again we neglect air resistance!...
Cornell >> PHYS >> 1112 (Spring, 2007)
Lecture 8 P112 Feb 7, 2007 Labs First lab begins this week No prelab You must finish lab in class (No problem) No homework You must be registered for the lab you attend No scheduled makeup labs With instructor permission you may attend another la...
Cornell >> PHYS >> 1112 (Spring, 2007)
timestep t 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 y 1.000 0.980 w 0.2 0.000 -0.100 -0.296 1.500 ...
Cornell >> PHYS >> 1112 (Spring, 2007)
Homework assignments: Posted on web - 2 weeks before due date (except for first assignment). Due every Friday in lecture. First HW Due this Friday! Cooperative Learning Problems/Tutorials: Assigned in recitation. You\'ll work on them in teams. Gradi...
Cornell >> PHYS >> 1112 (Spring, 2007)
P112 Spring 2007 Homework #8 Due: Friday March 16th, 2007 At lecture Reading: 6.5, 7.2-7.5, 8.1-8.3 Not all concepts will be covered in class you are responsible for all material in the reading and in the homework problems. Instructions: You only ...
Cornell >> PHYS >> 1112 (Spring, 2007)
Solutions HW 13 P112 S07 1) m = 0.150 kg . k = 300 N/m . When x1 = 0.0120 m , v1 = 0.300 m/s . Because the spring force is conservative, mechanical energy E = U + K is conserved. (Assume that no friction force acts on the toy.) 1 1 1 1 (a) E = U + K...
Cornell >> PHYS >> 1112 (Spring, 2007)
P112 Spring 2007 Homework #13 Due: Monday April 30th, 2007 At lecture Reading: 13.5-13.8 Not all concepts will be covered in class you are responsible for all material in the reading and in the homework problems. the spring is attached to the wall...
Cornell >> PHYS >> 1112 (Spring, 2007)
P112 Spring 2007 Homework #5 Due: Friday Feb 23rd, 2007 At lecture Reading: 4.3-4.6, 5.1, 5.2 Not all concepts will be covered in class you are responsible for all material in the reading and in the homework problems. b) Identify all Third Law int...
Cornell >> PHYS >> 1112 (Spring, 2007)
Solutions for HW 12 P112 S07 1: Apply Newton\'s second law to this new planet. Gms mv v2 \" F = ma: = mv r2 r 2# r v= T Gms $ 2#r \' =& ) r % T ( T= = 2 4# 2 r 3 Gms 4# 2 [ 2 3 (5.79 * 1010 m) ] 3 (6.67 * 10 +11 Nm2 kg2 )(1.99 * 1030 kg) $ ...
Cornell >> PHYS >> 1112 (Spring, 2007)
P112 Spring 2007 Homework #3 Solutions 1. (not boxed) Let the + x direction be east (E), and the + y direction be north (N). Subscript definitions: p stands for plane, g stands for ground, and a stands r for air. v p,a = ( !220 km/h )i^ (i.e., 220 km...
Cornell >> PHYS >> 1112 (Spring, 2007)
w CM f 1 2 3 4 5 If the block is in equilibrium, which best shows the \"effective location\" of the normal contact force due to the ramp? 1 2 3 4 5 ...
Cornell >> PHYS >> 1112 (Spring, 2007)
...
Cornell >> PHYS >> 1112 (Spring, 2007)
P112 Spring 2007 Homework #9 Due: Friday March 30th, 2007 At lecture Reading: 8.4-8.6 Not all concepts will be covered in class you are responsible for all material in the reading and in the homework problems. b) how much energy is released during...
Cornell >> PHYS >> 1112 (Spring, 2007)
P112 Spring 2007 Homework #11 Due: Friday April 13th, 2007 At lecture Reading: 11.1-11.3, 10.4-10.7 Not all concepts will be covered in class you are responsible for all material in the reading and in the homework problems. CD is increased until t...
Cornell >> PHYS >> 1112 (Spring, 2007)
P112 Spring 2007 Homework #12 Due: Friday April 20th, 2007 At lecture Reading: 12.5, 13.1-13.5 Not all concepts will be covered in class you are responsible for all material in the reading and in the homework problems. 4. In the previous question ...
Cornell >> PHYS >> 1112 (Spring, 2007)
P112 Spring 2007 Homework #2 Due: Friday Feb 2, 2007 At lecture Reading: 3.1-3.3, 3.5 Not all concepts will be covered in class you are responsible for all material in the reading and in the homework problems. Mathematics Exercises: 3a. Find the m...
Cornell >> PHYS >> 1112 (Spring, 2007)
P112 Spring 2007 Homework #2 Solutions Note: Solutions to boxed problems are given in detail, \"unboxed\" problem solutions will just contain a short answer. 1.(unboxed) Speed at the first point is 5.00 m/s, acceleration is 1.43 m/s2 2.(unboxed) Decele...
Cornell >> PHYS >> 1112 (Spring, 2007)
P112 Spring 2007 Homework #3 Due: Friday Feb 9th, 2007 At lecture Reading: 3.4, 4.1-4.2, 5.5, 12.1 Not all concepts will be covered in class you are responsible for all material in the reading and in the homework problems. Instructions: You only n...
Cornell >> PHYS >> 1112 (Spring, 2007)
Solutions Homework 11 P112 S07 1) The door has width w = 1.00 m and height h = 2.00 m and is hinged along one side so that it can rotate about an axis that runs along the hinged side (the z axis). The mass of the door is M = 40.0 kg . Its moment of i...
Cornell >> PHYS >> 1112 (Spring, 2007)
P112 Spring 2007 Homework #1 Due: Friday Jan 26, 2007 At lecture Reading: 1.1-1.6, 2.1-2.6 Not all concepts will be covered in class you are responsible for all material in the reading and in the homework problems. Mathematics Exercises: x 4. Cons...
Cornell >> PHYS >> 1112 (Spring, 2007)
...
Cornell >> PHYS >> 1112 (Spring, 2007)
Solutions HW 10 S07 P112 1) See textbook Figure 10.41. Let the z axis be along the axis of rotation of the wheel with the + z direction pointing out of the page. F1 = 7.50 N . F2 = 5.30 N . R = 0.330 m . z = F2R - F1R = (5.30 N)(0.330 m) - (7.50 N)(...
Cornell >> PHYS >> 1112 (Spring, 2007)
Which ball will reach the end of its track first? ...
Cornell >> PHYS >> 1112 (Spring, 2007)
Two hollow cylinders of equal mass, one with radius R and the other with radius 2R, roll without slipping down an inclined plane. Which one hits the bottom first? 1. R 2. 2R 3. Same time 4. Need more information ...
Cornell >> PHYS >> 1112 (Spring, 2007)
d d D A space ship (of mass m) is maneuvering near two white dwarf stars (each of mass M). The location of the spaceship is shown above. What is the magnitude of the gravitational force that the spaceship experiences? mM mM (2) 2 G 2 (1) 2 G 2 2 D ...
Cornell >> PHYS >> 1112 (Spring, 2007)
In the following scale diagram, each grid line represents one meter. What is the displacement of Bob from Alice? B A 1. 2. 3. 4. 5. 5 m [53.1 N of E] 5 m [36.9 N of E] 7 m [53.1 N of E] 7 m [36.9 N of E] None of the Above ...
Cornell >> PHYS >> 1112 (Spring, 2007)
P112 S07 Solutions to HW #5 1. 2. mA = 90.0 kg . WE on B = 490 N . !y B = 0.60 m in a time !t = 1.6 s . (a) Free-body diagram for the barbell: Free-body diagram for the athlete: +y Forces shown: r FA on B : contact force due to athlete\'s hands acti...
Cornell >> PHYS >> 1112 (Spring, 2007)
P112 Spring 2007 Homework #6 Due: Monday March 5th, 2007 At lecture Note: all of the material on this homework will be included in Prelim I! Reading: 5.3, 5.4, 5.5, 14.3 Not all concepts will be covered in class you are responsible for all material...
Cornell >> PHYS >> 1112 (Spring, 2007)
(a) A wheel slides across a frictionless icy surface with >vr. The wheel leaves the ice, and slides over a region with very high friction. Which direction is the friction force? (1) (2) (3) other (4) The friction force is zero. (b) Same problem, but...
Cornell >> PHYS >> 1112 (Spring, 2007)
(a) A wheel slides across a frictionless icy surface with >vr. The wheel leaves the ice, and slides over a region with very high friction. Which direction is the friction force? (1) (2) (3) other (4) The friction force is zero. (b) Same problem, but...
Cornell >> PHYS >> 1112 (Spring, 2007)
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