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Author Question: Exhibit 9-4The manager of a grocery store has taken a random sample of 100 customers. The average ... (Read 130 times)

dabomba718

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on: Mar 25, 2023

Exhibit 9-4
The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in the sample to check out was 3.1 minutes with a standard deviation of 0.5 minutes. We want to test to determine whether or not the mean waiting time of all customers is significantly more than 3 minutes.


Refer to Exhibit 9-4. At 95% confidence, it can be concluded that the mean of the population is


◦

significantly greater than 3


◦

not significantly greater than 3


◦

significantly less than 3


◦

significantly greater then 3.18

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by dabomba718 on Mar 25, 2023

MajorWaffle

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Reply #1 on: Mar 25, 2023
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dabomba718

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Reply 2 on: Mar 25, 2023
:D TYSM

bulacsom

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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