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Author Question: An automotive repair shop has determined that the average service time on an automobile is 130 ... (Read 123 times)

knemetz3

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on: Mar 25, 2023

An automotive repair shop has determined that the average service time on an automobile is 130 minutes with a standard deviation of 26 minutes.  A random sample of 40 automotive services is selected.

a.Compute the standard error of the mean.
b.What is the probability that the sample of 40 automotive services will have a mean service time greater than 136 minutes?
c.Assume the population consists of 400 automotive services.  Determine the standard error of the mean.

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by knemetz3 on Mar 25, 2023

Harsh06

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Reply #1 on: Mar 25, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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knemetz3

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Reply 2 on: Mar 25, 2023
YES! Correct, THANKS for helping me on my review

ghepp

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Reply 3 on: Yesterday
Excellent

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