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Author Question: A local electronics firm wants to determine their average daily sales (in dollars.) A sample of the ... (Read 89 times)

kms5229

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on: Mar 25, 2023

A local electronics firm wants to determine their average daily sales (in dollars.)  A sample of the sales for 36 days revealed average sales of $139,000.  Assume that the standard deviation of the population is known to be $12,000.

a.Provide a 95% confidence interval estimate for the average daily sales.
b.Provide a 97% confidence interval estimate for the average daily sales.

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by kms5229 on Mar 25, 2023

StephaniaF

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Reply #1 on: Mar 25, 2023
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kms5229

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

Sarahjh

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Reply 3 on: Yesterday
Wow, this really help

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