Homework 6 (worth 4 points)
1. Two accounting professors decided to compare the variation of their grading procedures.
To accomplish this they each graded the same 10 exams with the following results:
P ro fe sso r 1
P ro fe sso r 2
M e a n G ra d e
7 9 .
Homework 7 (worth 4 points)
1. What are the input and the output of linear regression?
2. What does the coefficient of determination measure?
It is a measure of how well the regression line represents the data. If the
regression line passes exactly throug
Mt. Claire Caf Case
Understanding the effects of pricing on revenues, costs and pricing
Introduction: It is February and you have recently been hired as the manager of Mt. Claire Caf. You
have been asked to improve profitability. Note: Please use Excel fo
Question1
1/1pts
A researcher is interested in the average income for registered voters in the United States. The entire
group of registered voters is an example of a population.
Correct!
True
False
Question2
1/1pts
For the following scores, (X + 1) = 9.
Question1
1/1pts
For a negatively skewed distribution, the mean usually has a larger value than either the median or the
mode.
True
Correct!
False
Question2
1/1pts
A population of N = 6 scores hasX = 30. What is the population mean?
15
180
30
Correct!
5
Q
Question1
1/1pts
You have a score of X = 65 on an exam. Which set of parameters would give you the best grade on the
exam?
= 70 and = 10
Correct!
= 60 and = 5
= 70 and = 5
= 60 and = 10
Question2
1/1pts
If an entire population with = 60 ands= 8 is tra
Question1
1/1pts
For an independent-measures t statistic, what is the effect of increasing the number of scores in
the samples?
Increase the likelihood of rejecting H0 and increase measures of effect size.
Decrease the likelihood of rejecting H0 and have
Scoreforthisattempt:23outof25
SubmittedNov19at5:26pm
Thisattempttook138minutes.
Question1
1/1pts
In order to estimate a population mean with a confidence interval, you first must estimate a range of
values for t.
Correct!
True
False
Question2
1/1pts
When
Financial Accounting; Understanding Financial Statements (Required)
You may want to start with this on-line tutorial. It will take a total of 45 minutes and can be
completed over multiple days. It is optional and not graded. It explains accrual accounting