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With a t statistic of 1.4789 and P-value of 0.173292, reject the null hypothesis that prices have not changed. With a t statistic of 1.4789 and P-value of 0.173292, fail to reject the null hypothesis that prices have not changed. With a t statistic of 0.7394 and P-value of 0.478505, reject the null hypothesis that prices have not changed.

With a t statistic of 1.4789 and P-value of 0.173292, reject the null hypothesis that prices have not changed. With a t statistic of 1.4789 and P-value of 0.173292, fail to reject the null hypothesis that prices have not changed. With a t statistic of 0.7394 and P-value of 0.478505, reject the null hypothesis that prices have not changed.

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 business anal

With a t statistic of 1.4789 and P-value of 0.173292, reject the null hypothesis that prices have not changed. With a t statistic of 1.4789 and P-value of 0.173292, fail to reject the null hypothesis that prices have not changed. With a t statistic of 0.7394 and P-value of 0.478505, reject the null hypothesis that prices have not changed. With a t statistic of 0.7394 and P-value of 0.478505, fail to reject the null hypothesis that prices have not changed.
Transcribed Image Text:With a t statistic of 1.4789 and P-value of 0.173292, reject the null hypothesis that prices have not changed. With a t statistic of 1.4789 and P-value of 0.173292, fail to reject the null hypothesis that prices have not changed. With a t statistic of 0.7394 and P-value of 0.478505, reject the null hypothesis that prices have not changed. With a t statistic of 0.7394 and P-value of 0.478505, fail to reject the null hypothesis that prices have not changed.
A business analyst wants to determine if the prices of goods at a supermarket have changed significantly since the new owner of the company took over. She looks at the prices of ten items before the new owner took over compared to after the new owner started. Item Before Price After Price 1 2 3 4 5 6 7 8 9 10 $2.50 $3.45 $6.75 $3.50 $2.89 $3.56 $7.12 $8.90 $5.24 $4.60 $2.80 $3.14 $7.01 $3.54 $2.95 $3.70 $7.03 $8.88 $5.20 $4.67 Difference (After - Before) $0.30 - $0.31 $0.26 $0.04 $0.06 $0.14 -$0.09 -$0.02 - -$0.04 $0.07 Based on the data in the table and using a significance level of 0.05, what is the correct P- value and conclusion?
Transcribed Image Text:A business analyst wants to determine if the prices of goods at a supermarket have changed significantly since the new owner of the company took over. She looks at the prices of ten items before the new owner took over compared to after the new owner started. Item Before Price After Price 1 2 3 4 5 6 7 8 9 10 $2.50 $3.45 $6.75 $3.50 $2.89 $3.56 $7.12 $8.90 $5.24 $4.60 $2.80 $3.14 $7.01 $3.54 $2.95 $3.70 $7.03 $8.88 $5.20 $4.67 Difference (After - Before) $0.30 - $0.31 $0.26 $0.04 $0.06 $0.14 -$0.09 -$0.02 - -$0.04 $0.07 Based on the data in the table and using a significance level of 0.05, what is the correct P- value and conclusion?
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