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

The % confidence interval is ?, ?

Interpret you results. Choose the correct answer below.

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

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

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

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