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Author Question: Exhibit 8-4In order to estimate the average electric usage per month, a sample of 81 houses was ... (Read 48 times)

Mscarter

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on: Mar 25, 2023

Question 1

Exhibit 8-4
In order to estimate the average electric usage per month, a sample of 81 houses was selected, and the electric usage was determined.  Assume a population standard deviation of 450-kilowatt hours.


Refer to Exhibit 8-4.  The standard error of the mean is


◦

450


◦

81


◦

500


◦

50



Question 2

Exhibit 8-4
In order to estimate the average electric usage per month, a sample of 81 houses was selected, and the electric usage was determined.  Assume a population standard deviation of 450-kilowatt hours.


Refer to Exhibit 8-4.  At 95% confidence, the size of the margin of error is


◦

1.96


◦

50


◦

98


◦

42

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

kaelamcrone

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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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Mscarter

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

bigsis44

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

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