A market research firm used a sample of individuals to rate the purchase potential of a particular product before and after the individuals saw a new television commercial about the product. The purchase potential ratings were based on a 0 to 10 scale, with higher values indicating a higher purchase potential. The null hypothesis stated that the mean rating "after" would be less than or equal to the mean rating "before." Rejection of this hypothesis would show that the commercial improved the mean purchase potential rating. Use a=0.05 and the following data to test the hypothesis and comment on the value of the commercial. Purchase Rating Purchase Rating Individual After Before Individual After Before 1 6 5 5 3 4 2 6 4 6 9 7 3 8 8 7 7 5 4 4 4 8 6 7 What are the hypotheses? Compute d (to 3 decimals) Compute sd (to 1 decimal). What is the p-value? What is your decision?
A market research firm used a sample of individuals to rate the purchase potential of a particular product before and after the individuals saw a new television commercial about the product. The purchase potential ratings were based on a 0 to 10 scale, with higher values indicating a higher purchase potential. The null hypothesis stated that the mean rating "after" would be less than or equal to the mean rating "before." Rejection of this hypothesis would show that the commercial improved the mean purchase potential rating. Use a=0.05 and the following data to test the hypothesis and comment on the value of the commercial. Purchase Rating Purchase Rating Individual After Before Individual After Before 1 6 5 5 3 4 2 6 4 6 9 7 3 8 8 7 7 5 4 4 4 8 6 7 What are the hypotheses? Compute d (to 3 decimals) Compute sd (to 1 decimal). What is the p-value? What is your decision?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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PLEASE ANSWER ASAP. A market research firm used a sample of individuals to rate the purchase potential of a particular product before and after the individuals saw a new television commercial about the product. The purchase potential ratings were based on a 0 to 10 scale, with higher values indicating a higher purchase potential. The null hypothesis stated that the mean rating "after" would be less than or equal to the mean rating "before." Rejection of this hypothesis would show that the commercial improved the mean purchase potential rating. Use a=0.05 and the following data to test the hypothesis and comment on the value of the commercial.
| Purchase Rating | Purchase Rating | |||||
| Individual | After | Before | Individual | After | Before | |
| 1 | 6 | 5 | 5 | 3 | 4 | |
| 2 | 6 | 4 | 6 | 9 | 7 | |
| 3 | 8 | 8 | 7 | 7 | 5 | |
| 4 | 4 | 4 | 8 | 6 | 7 |
What are the hypotheses?
Compute d (to 3 decimals)
Compute sd (to 1 decimal).
What is the p-value?
What is your decision?
Transcribed Image Text:A market research firm used a sample of individuals to rate the purchase potential of a particular product before and after the individuals saw a new television
commercial about the product. The purchase potential ratings were based on a 0 to 10 scale, with higher values indicating a higher purchase potential. The null
hypothesis stated that the mean rating "after" would be less than or equal to the mean rating "before." Rejection of this hypothesis would show that the commercial
improved the mean purchase potential rating. Use a = = 0.05 and the following data to test the hypothesis and comment on the value of the commercial.
What are the hypotheses?
Ho: Md is
- Select your answer -
Ha: Md is
Compute ā (to 3 decimals).
- Select your answer -
Compute sa (to 1 decimal).
What is the p-value?
The p-value is - Select your answer -
V
Individual
1
2
3
4
Purchase Rating
Before
After
6
6
8
4
What is your decision?
✓ - Select your answer -
Cannot conclude seeing the commercial improves the mean potential to purchase
Seeing the commercial improves the mean potential to purchase
5
4
8
st
4
O
Individual
5
6
7
8
Purchase Rating
Before
After
3
9
7
6
4
7
5
7
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