Hayden Ingle
Wesley Bennice
Robin Tiefenthaler
Project 5
Introduction
We chose to evaluate if there was a linear relationship between DaysSki and Weight.
We expected a negative relationship between DaysSki and Weight. We thought that the more
days skied w
Box 3
19 Points
Box 3
1.
Where are bootstrap distributions centered?
a) The population parameter.
b) The sample statistic.
c) The null value.
d) None of the above.
The answer is B, the sample statistic.
2.
When estimating the true value of a parameter, wh
Box 3
19 Points
Box 3
1.
Where are bootstrap distributions centered?
a) The population parameter.
b) The sample statistic.
c) The null value.
d) None of the above.
The answer is B, the sample statistic.
2.
When estimating the true value of a parameter, wh
Box 4
19 Points
Box 4
1. The sampling distribution of depends on all of the following EXCEPT
A. Sample size
B. Number of simulations
C. Population mean
D. Population standard deviation
The answer is letter B, number of simulations.
2. The purpose of creat
Box 2
23 Points
Box 2
Questions 1-2: Suppose listeners to a late-night radio talk show were asked to call and report whether or
not they had ever seen a ghost.
1. Which sampling method is used in this survey?
A. Simple random sample
B. Stratified sample
C
D2Box 1
16 Points
Box 1
This is currently in a word processing format. Make changes to it to include your answers, and turn it in to your
instructors. They require you to turn in a pdf for the D2L system, so find and click Export to Pdf in the File
menu.
Box 4
19 Points
Box 4
1. The sampling distribution of x depends on all of the following EXCEPT
A. Sample size
B. Number of simulations
C. Population mean
D. Population standard deviation
The answer is letter B, number of simulations.
2. The purpose of cre
Box 5
20 Points
Box 5
1. For each of the two research scenarios below,
i.
Identify the cases.
ii.
Name the variables measured on each case.
iii.
State whether each variable is categorical or quantitative.
iv.
Identify which variable is the explanatory var
Box 6
23 Points
Box 6
In a double blind experiment, cocaine addicts were randomly assigned either Desipramine or a placebo.
Of 24 people given Desipramine, 14 were able to stay off cocaine for 6 weeks, whereas in the placebo
group, only 4 of 24 stayed off
D2Box 1
16 Points
Box 1
This is currently in a word processing format. Make changes to it to include your answers, and turn it in to your
instructors. They require you to turn in a pdf for the D2L system, so find and click Export to Pdf in the File
menu.
Box 2
23 Points
Box 2
Questions 1-2: Suppose listeners to a late-night radio talk show were asked to call and report
whether or not they had ever seen a ghost.
1. Which sampling method is used in this survey?
A. Simple random sample
B. Stratified sample
C
Box 2
23 Points
Box 2
Questions 1-2: Suppose listeners to a late-night radio talk show were asked to call and report whether or
not they had ever seen a ghost.
1. Which sampling method is used in this survey?
A. Simple random sample
B. Stratified sample
C
Box 4
19 Points
Box 4
1. The sampling distribution of x depends on all of the following EXCEPT
A. Sample size
B. Number of simulations
C. Population mean
D. Population standard deviation
The sampling distribution depends on all of the following except Num
Box 3
19 Points
Box 3
1.
Where are bootstrap distributions centered?
a) The population parameter.
b) The sample statistic.
c) The null value.
d) None of the above.
The boost strep distribution is centered at B the sample statistic.
2.
When estimating the
Possibly Helpful Stats Tips Before Exam 1
_?_ always applies to a POPULATION
_?_ always applies to a SAMPLE
If it asks for the parameter of interest, the word _?_ must be included in your
answer.
A parameter can be a true proportion, true mean, true diffe
Box 11
19 Total Points
Box 11
1. True or False: Changing confidence levels will change the center and the width of a confidence
interval.
How does exposure to ozone affect the growth of trees?
Researchers asking this question randomly assigned a represent
The US government requires car manufacturers to keep the average fuel economy of the
entire fleet of passenger cars sold above a certain standard (CAFE) or pay a fine. The
actual CAFE standards are complex, but we will use the 2011 standard of 30.2 MPG
hi
Box 5
22 Points
Box 5
In a double blind experiment, cocaine addicts were randomly assigned either Desipramine or a placebo.
Of 24 people given Desipramine, 14 were able to stay off cocaine for 6 weeks, whereas in the placebo
group, only 4 of 24 stayed off
D2Box 1
16 Points
Box 1
This is currently in a word processing format. Make changes to it to include your answers, and turn it in to your
instructors. It is required that you to turn in a pdf for the D2L system, so find and click Export to Pdf in the
File
Box 8
22 Total Points
Box 8
1) In a stats class, exam 2 was worth 80 points. We did a regression and found a strong relationship
between Exam 2 points and Final Overall Percentage for the class. The best fitting line is
^y =56+ 0.46 x
a. If someone got 72
Box 9
20 Total Points
Box 9
1. Tests of intelligence are designed to return IQ's having a normal distribution centered at 100 with
standard deviation 15.
a. Using the empirical rule, give three different ranges of IQ scores and tell what percent of
IQs sh
Box 4
20 Points
Box 4
1) The activity we just did in class described an experiment in which students listened to
music while answering SAT questions. One of the four principles of experimental
design says we should Control other variables. What is one var
Box 2
20 Points
Box 2
Be sure to do the reading and watch the videos indicated after Activity 4: Helper/Hinderer before
completing this assignment.
In recent years, 80% of those accused of Driving Under the Influence (DUI) got convicted (includes plea
bar
Box 6
20 Total Points
Box 6
Bozeman has resident populations of both mountain chickadees and blackcap
chickadees. Researchers at University of Nevada Reno theorized that mountain
chickadees might be better at problem solving because they live in a more
ch
HW 1 Stat 217 Fall 2014
due: 9/5/14
Names:
1. We will be working o the example from in class (in the Chapter 1 notes pgs 8-9). I want you
to choose two players, in the same sport (can be any sport) that you would like to compare.
Determine a statistic tha