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Category > Math Posted 15 Aug 2017 My Price 7.00

In a random sample of 35 ​refrigerators, the mean repair cost was ​$136.00 and the population standard deviation is ​$18.60.

In a random sample of 35 ​refrigerators, the mean repair cost was ​$136.00 and the population standard deviation is ​$18.60. Construct a 90​% confidence interval for the population mean repair cost. Interpret the results. Construct a 90% confidence interval for the population mean repair cost.

The 90% confidence interval is ?, ?.

 

Interpret you results. Choose the correct answer below.

 

A.With 90% confidence, it can be said that the confidence interval contains the true mean repair cost.

B.The confidence interval contains 90% of the mean repair costs.

C.With 90% confidence, it can be said that the confidence interval contains the sample mean repair cost.

Answers

SophiaPretty
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Status NEW Posted 15 Aug 2017 05:08 AM My Price 7.00

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