A book club wants to determine if there is a difference in the prices charged by two local bookstores for textbooks. They sample prices from both companies. Test at a 0.05 level of significance if there is a difference in the prices. Store A Store B Mean cost $34.5 $31.5 Sample standard deviation 4 4.5 Sample size 25 24 State the letter of the correct null hypothesis and alternative hypothesis ["", "", "", ""] A. Ho: μ1= μ2 Ha: μ1 ≠ μ2 B. Ho: μ1>= μ2 Ha: μ1 <= μ2 C. Ho: μ1<= μ2 Ha: μ1 > μ2 D. Ho: μ1= 0 Ha: μ2 ≠ 0 State pooled variance. [select] ( 18.08, 17.34, 849.75) Two decimal places State the critical value. [select] ( 1.6779, 2.0096, 2.0117) Four decimal places State the statistical value. [select] ( 1.215, 2.469, 18.08) Three Decimal State approximate pvalue from the tables. [select] ( 0.20, 0.01-0.02, 0.005 - 0.01) Decision? [select] ( reject, don't reject)
A book club wants to determine if there is a difference in the prices charged by two local bookstores for textbooks. They sample prices from both companies. Test at a 0.05 level of significance if there is a difference in the prices. Store A Store B Mean cost $34.5 $31.5 Sample standard deviation 4 4.5 Sample size 25 24 State the letter of the correct null hypothesis and alternative hypothesis ["", "", "", ""] A. Ho: μ1= μ2 Ha: μ1 ≠ μ2 B. Ho: μ1>= μ2 Ha: μ1 <= μ2 C. Ho: μ1<= μ2 Ha: μ1 > μ2 D. Ho: μ1= 0 Ha: μ2 ≠ 0 State pooled variance. [select] ( 18.08, 17.34, 849.75) Two decimal places State the critical value. [select] ( 1.6779, 2.0096, 2.0117) Four decimal places State the statistical value. [select] ( 1.215, 2.469, 18.08) Three Decimal State approximate pvalue from the tables. [select] ( 0.20, 0.01-0.02, 0.005 - 0.01) Decision? [select] ( reject, don't reject)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
A book club wants to determine if there is a difference in the prices charged by two local bookstores for textbooks.
They sample prices from both companies. Test at a 0.05 level of significance if there is a difference in the prices.
| Store A | Store B | |
| $34.5 | $31.5 | |
| Sample standard deviation | 4 | 4.5 |
| 25 | 24 |
State the letter of the correct null hypothesis and alternative hypothesis ["", "", "", ""]
A. Ho: μ1= μ2 Ha: μ1 ≠ μ2
B. Ho: μ1>= μ2 Ha: μ1 <= μ2
C. Ho: μ1<= μ2 Ha: μ1 > μ2
D. Ho: μ1= 0 Ha: μ2 ≠ 0
State pooled variance. [select] ( 18.08, 17.34, 849.75) Two decimal places
State the critical value. [select] ( 1.6779, 2.0096, 2.0117) Four decimal places
State the statistical value. [select] ( 1.215, 2.469, 18.08) Three Decimal
State approximate pvalue from the tables. [select] ( 0.20, 0.01-0.02, 0.005 - 0.01)
Decision? [select] ( reject, don't reject)
![A book club wants to determine if there is a difference in the prices charged by two local bookstores for textbooks.
They sample prices from both companies. Test at a 0.05 level of significance if there is a difference in the prices.
Mean cost
Sample standard deviation 4
Sample size
25
A. Ho: μ1= μ2
State the letter of the correct null hypothesis and alternative hypothesis [Select]
B. Ho: μ1>= μ2
C. Ho: μ1<= μ2
D. Ho: μ1= 0
Store A Store B
$34.5 $31.5
Ha: μ1 # μ2
Ha: μ1 <= μ2
Ha: μ1 > μ2
Ha: μ2 #0
State pooled variance.
[Select]
State the critical value. [Select]
4.5
24
Decision? [Select]
State the statistical value. [Select]
State approximate pvalue from the tables.
[Select]
Two decimal places
Four decimal places
V Three decimal places](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F953e3ae3-1a36-4eca-a542-ddeb8c6ae72a%2F7fb4aaa1-629e-4589-9603-38bd2bf8c784%2Fy4cthhu_processed.png&w=3840&q=75)
Transcribed Image Text:A book club wants to determine if there is a difference in the prices charged by two local bookstores for textbooks.
They sample prices from both companies. Test at a 0.05 level of significance if there is a difference in the prices.
Mean cost
Sample standard deviation 4
Sample size
25
A. Ho: μ1= μ2
State the letter of the correct null hypothesis and alternative hypothesis [Select]
B. Ho: μ1>= μ2
C. Ho: μ1<= μ2
D. Ho: μ1= 0
Store A Store B
$34.5 $31.5
Ha: μ1 # μ2
Ha: μ1 <= μ2
Ha: μ1 > μ2
Ha: μ2 #0
State pooled variance.
[Select]
State the critical value. [Select]
4.5
24
Decision? [Select]
State the statistical value. [Select]
State approximate pvalue from the tables.
[Select]
Two decimal places
Four decimal places
V Three decimal places
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Step 1: Given information:
VIEWStep 2: Statements for null and alternative hypotheses:
VIEWStep 3: Calculation for the pooled variance:
VIEWStep 4: Calculation for the critical value:
VIEWStep 5: Calculation for the statistical value:
VIEWStep 6: Calculation for the p-value:
VIEWStep 7: Decision about the claim:
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