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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 58 times)

mccallkeeler

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on: Mar 25, 2023

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.  If the sample mean is 1,858 KWH, the 95% confidence interval estimate of the population mean is


◦

1,760 to 1,956 KWH


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1,858 to 1,956 KWH


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1,760 to 1,858 KWH


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none of these alternatives is correct

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Marked as best answer by mccallkeeler on Mar 25, 2023

kuttz

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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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mccallkeeler

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Reply 2 on: Mar 25, 2023
Great answer, keep it coming :)

AngeliqueG

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Reply 3 on: Yesterday
:D TYSM

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