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Author Question: Suppose a large labor union wishes to estimate the mean number of hours per month a union member is ... (Read 574 times)

leilurhhh

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Question 1

The director of a hospital wishes to estimate the mean number of people who are admitted to the emergency room during a period. The director randomly selects 49 different periods and determines the number of admissions for each. For this sample, and Estimate the mean number of admissions per period with a 90% confidence interval.
◦ 17.2 ± .168
◦ 17.2 ± 5.875
◦ 17.2 ± 1.175
◦ 17.2 ± .643

Question 2

Suppose a large labor union wishes to estimate the mean number of hours per month a union member is absent from work. The union decides to sample 348 of its members at random and monitor the working time of each of them for 1 month. At the end of the month, the total number of hours absent from work is recorded for each employee. If the mean and standard deviation of the sample are hours and hours, find a 99% confidence interval for the true mean number of hours a union member is absent per month. Round to the nearest thousandth.
◦ 7.5 ± .186
◦ 7.5 ± .483
◦ 7.5 ± .026
◦ 7.5 ± .258


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Marked as best answer by leilurhhh on Feb 14, 2020

mcinincha279

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leilurhhh

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Reply 2 on: Feb 14, 2020
:D TYSM


essyface1

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Reply 3 on: Yesterday
Excellent

 

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