Jeanette Ernest
Homework Assignment 6
Lane et al
Chapter 11
Exercise 18
You choose an alpha level of .01 and then analyze your data.
a. What is the probability that you will make a Type I error given that the null hypothesis is true?
.01 Or 1%
b. What is
Jeanette Ernest
Homework Assignment 5
Lane et al.
Exercise 4
Why is a 99% confidence interval wider than a 95% confidence interval?
Confidence interval is defined as a interval that contains the true population mean. That means
with a 95% confidence inter
Los siguientes datos corresponden a la cantidad promedio (en dolares) que gastan en comida cada
aerolinea por pasajero
7.41
2.45
3.5
7.24
4.35
7.89
5.15
4.34
6.5
5.09
6.66
5.5
4.61
7.43
7.8
2.77
5.76
3.9
2.68
5.76
4.9
3.34
7.88
7.9
a) Obtener la Media, me
Los siguientes datos corresponden a la cantidad promedio (en dolares) que gastan en comida cada
aerolinea por pasajero
7.41
2.45
3.5
7.24
4.35
7.89
5.15
4.34
6.5
5.09
6.66
5.5
4.61
7.43
7.8
2.77
5.76
3.9
2.68
5.76
4.9
3.34
7.88
7.9
a) Obtener la Media, me
No.
Codigo De Empresa Compaia
Sector
1
685 Tenneco
2
499 New England Electric System
3
750 Vons Cos
4
189 Countrywide Credit Industries
5
610 Rubbermaid
6
212 Detroit Edison
7
631 Service Corp International
8
784 York International
9
342 Harris Corp
10
23
Lissa McCoy
Stat 200
06/02/2017
Page 1 of 7
Quiz 1
Stat 200 (Clary)
Instructions: Record your answers and work in the space below each problem. Be sure to record
the final answer next to Answer and show all your calculation steps or assumptions under
Work
Homework Assignment 1
Stat 200 (Clary)
Instructions: Be sure to record the final answer next to Answer and show all your calculation
steps or assumptions under Work. You can type in your calculations, use the equation tool, or
insert images of your handwr
Lissa McCoy
Stat 200
06/16/17
Page 1 of 4
Quiz 2
Stat 200
Instructions: Record your answers and work in the space below each problem. Be sure to record
the final answer next to Answer and show all your calculation steps or assumptions under
Work. You can
Homework Assignment 4
Stat 200 (Clary)
Instructions: Be sure to record the final answer next to Answer and show all your calculation
steps or assumptions under Work. You can type in your calculations, use the equation tool, or
insert images of your handwr
Homework Assignment 3
Stat 200 (Clary)
Instructions: Be sure to record the final answer next to Answer and show all your calculation
steps or assumptions under Work. You can type in your calculations, use the equation tool, or
insert images of your handwr
Lissa McCoy
Stat 200
05/24/2017
Page 1 of 15
Homework Assignment 2
Stat 200 (Clary)
Instructions: Be sure to record the final answer next to Answer and show all your calculation
steps or assumptions under Work. You can type in your calculations, use the e
Jeanette Ernest
Homework Assignment Four
Lane et al.
Chapter 7
Exercise 8
Assume the speed of vehicles along a stretch of I-10 has an approximately normal
distribution with a mean of 71 mph and a standard deviation of 8 mph.
a. The current speed limit is
Jeanette Ernest
Homework Assignment Two
Lane et al.
Exercise 7 Page 117
For the data from the 1977 Stat. and Biom. 200 class for eye color, construct:
a. pie graph
b. horizontal bar graph
c. vertical bar graph
d. a frequency table with the relative freque
STAT 200 Introduction to Statistics QUIZ 1 (2175)
Dr. Cindy McCullagh
Instructions:
The quiz is worth 50 points. There are five problems, each worth 10 points. Your score on the
quiz will be posted in your assignment folder with comments.
This quiz is ope
Jeanette Ernest
Homework Assignment 3
Lane et al.
Exercise 5
A fair coin is flipped 9 times. What is the probability of getting exactly 6 heads?
(1/2)^6 * (1/2)^3 = 9*8*7 / 1*2*3 * 1/64 * 1/8 = 84 / 512 = 21 / 128 or 0.164
Exercise 7
You flip a coin three
Jeanette Ernest
Homework Assignment One
Lane et al.
Exercise 6:
Categorize the following variables as being qualitative or quantitative:
Rating the quality of a movie on a 7-point scale- Qualitative because it shows a qualitative
attribute.
Age- Quantitat
Jeanette Ernest
Homework Assignment 5
Lane et al.
Exercise 4
Why is a 99% confidence interval wider than a 95% confidence interval?
Confidence interval is defined as a interval that contains the true population mean. That means with a
95% confidence inter
Main Points the author is trying to make:
Contradictory arguments and conclusions can be supported by analyzing and
presenting data in different ways.
Statistics are the product of conscious choices. Statistics are subject to bias and
impression as it bor
Statistics is a branch of math. It deals with collection, analysis, interpretation,
presentation, and organization of data.
Main points the author is trying to make:
Statistics go hand in hand with reality
Critical thinking is needed when working with sta
Jeanette Ernest
Read Section 2 of Making Sense of Statistics and discuss the following:
1) What do the authors list as the three common pitfalls of statistics? Please find,
describe, and cite the source of information that you believe may contain ONE of
t
Page 1 of 8
Homework Assignment 4
Stat 200 (Clary)
Instructions: Be sure to record the final answer next to Answer and show all your calculation
steps or assumptions under Work. You can type in your calculations, use the equation tool, or
insert images of
Introductory Statistics
OpenStax
Rice University
6100 Main Street MS-375
Houston, Texas 77005
To learn more about OpenStax, visit http:/openstaxcollege.org.
Individual print copies and bulk orders can be purchased through our website.
2016 Rice Universit
Week 2 Homework
Introduction to Statistics
Aaron Sandrini
Professor Karen Friedman
June 4, 2017
LANE CHAPTER 2
7.
EYE COLOR NUMBER OF STUDENTS
BROWN
11
BLUE
10
GREEN
GREY
A.
4
1
Number of students
1
4
Brown
blue
green
grey
11
10
B.
grey
green
blue
Brown
0
nCr = 7! / (n-r)! r!
N =7 Available professors for chair seats
R= 4 Total number of mathematician minus 1 (chair must come from math department).
7C4 = 7! / (7-4)! 4!
7C4 = 7! / (3)! 4!
7C4 = 7X6X5X4 / (4X3X2X1)
7C4 = 840/ (24) = 35
7C4 = 35*3= 105
There
Lane
Exercise 7
You flip a coin three times.
a. What is the probability of getting heads on only one of your flips?
3C1 (1 / 2)^1
(1 / 2) ^2 = 0.375
b. What is the probability of getting heads on at least one flip?
1 (1 / 2)^3 = 0.875
Exercise 27
A refrig
Lane
Exercise 8
Assume the speed of vehicles along a stretch of I-10 has an approximately normal
distribution with a mean of 71 mph and a standard deviation of 8 mph.
a. The current speed limit is 65 mph. What is the proportion of vehicles less than
or eq
Lane
Exercise 7
For the data from the 1977 Stat. and Biom. 200 class for eye color, construct:
a. pie graph Please see attached
b. horizontal bar graph Please see attached
c. vertical bar graph Please see attached
d. a frequency table with the relative fr