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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
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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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. 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
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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