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Author Question: A local retailer claims that the mean waiting time is less than 5 minutes. A random sample of 20 ... (Read 39 times)

sarasara

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A local retailer claims that the mean waiting time is less than 5 minutes. A random sample of 20 waiting times has a mean of 3.5 minutes with a standard deviation of 2.1 minutes. At α = 0.01, test the retailer's claim. Assume the distribution is normally distributed. Round the test statistic to the nearest thousandth.


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Marked as best answer by sarasara on Jan 16, 2020

yahahah24021

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sarasara

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Reply 2 on: Jan 16, 2020
:D TYSM


tkempin

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Reply 3 on: Yesterday
Gracias!

 

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