Question

1) (3 points) A marketing research group shows two different versions of the television advertisements for the same product to each of sixty participants. Each participant is asked to rate two advertisements on a scale of 1 to 100. A research group wants to test if both ads are equally effective or if there is significant difference. HO____ Ha Test Statistics 2) (3 points) Fifty-five customers of a large-chain grocery store are asked to fill out an in-store survey. One of the questions on the survey asks about the use of coupons (yes or no), while another question asks how much money the customer spent on groceries during that specific trip. A store management hypothesizes that people that use coupons actually spend more money, on average. HO Ha Test Statistics 3) (2 points) The goal of the simple regression analysis is to understand [Mark one answer]: _ the nature of the association between the two numerical variables X and Y. _ the nature of the association between the two categorical variables X and Y. _ the nature of the linear association between the two numerical variables X and Y. _____ the nature of the linear association between the two categorical variables X and Y. 4) (2 points) For which of the following sets of data points can you reasonably determine a regression line? Circle one answer. Explain your answer. A B C Explanation:

1) (3 points) A marketing research group shows two different versions of the television advertisements for the same product to each of sixty participants. Each participant is asked to rate two advertisements on a scale of 1 to 100. A research group wants to test if both ads are equally effective or if there is significant difference.

HO____________________ Ha____________________ Test Statistics ____________________

2) (3 points) Fifty-five customers of a large-chain grocery store are asked to fill out an in-store survey. One of the questions on the survey asks about the use of coupons (yes or no), while another question asks how much money the customer spent on groceries during that specific trip. A store management hypothesizes that people that use coupons actually spend more money, on average.

HO____________________ Ha____________________ Test Statistics ____________________

3) (2 points) The goal of the simple regression analysis is to understand [Mark one answer]:
_______ the nature of the association between the two numerical variables X and Y.
_______ the nature of the association between the two categorical variables X and Y.
_______ the nature of the linear association between the two numerical variables X and Y.
_______ the nature of the linear association between the two categorical variables X and Y.

4) (2 points) For which of the following sets of data points can you reasonably determine a regression line? Circle one answer. Explain your answer.

A B C

Explanation:

1) (3 points) A marketing research group shows two different versions of the television advertisements for the same product to each of sixty participants. Each participant is asked to rate two advertisements on a scale of 1 to 100. A research group wants to test if both ads are equally effective or if there is significant difference.

HO Ha Test Statistics

2) (3 points) Fifty-five customers of a large-chain grocery store are asked to fill out an in-store survey. One of the questions on the survey asks about the use of coupons (yes or no), while another question asks how much money the customer spent on groceries during that specific trip. A store management hypothesizes that people that use coupons actually spend more money, on average.

HO Ha Test Statistics

3) (2 points) The goal of the simple regression analysis is to understand [Mark one answer]:
the nature of the association between the two numerical variables X and Y.
the nature of the association between the two categorical variables X and Y.
the nature of the linear association between the two numerical variables X and Y.
the nature of the linear association between the two categorical variables X and Y.

4) (2 points) For which of the following sets of data points can you reasonably determine a regression line? Circle one answer. Explain your answer.

A B C

Explanation:

Added by Felipe B.

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