Question: Construct a Confidence Interval with given the sample mean and the sample standard deviation. Assume the population is normally distributed and use the t-distribution to

Construct a Confidence Interval with given the sample mean and the sample standard deviation. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 95% confidence interval for the population mean.

Interpret the results.

Mobile Device Repair Costs research

a) In a random sample of 12 mobile devices, the mean repair cost was $90.42 and the standard deviation was $33.61.

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