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Author Question: Exhibit 8-1In order to estimate the average time spent on the computer terminals per student at a ... (Read 59 times)

sreghbsidhgjbndskijgnio

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on: Mar 25, 2023

Exhibit 8-1
In order to estimate the average time spent on the computer terminals per student at a local university, data were collected for a sample of 81 business students over a one-week period. Assume the population standard deviation is 1.8 hours.


Refer to Exhibit 8-1. If the sample mean is 9 hours, then the 95% confidence interval is


◦

7.04 to 110.96 hours


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7.36 to 10.64 hours


◦

7.80 to 10.20 hours


◦

8.61 to 9.39 hours

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

koswald

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Reply #1 on: Mar 25, 2023
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sreghbsidhgjbndskijgnio

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Reply 2 on: Mar 25, 2023
Wow, this really help

31809pancho

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

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