In a random sample of eight cell​ phones, the mean full retail price was ​$431.50 and the standard deviation was ​$226.00. Assume the population is normally distributed and use the​ t-distribution to find the margin of error and construct a 90​% confidence interval for the population mean μ. Interpret the results.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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In a random sample of

eight

cell​ phones, the mean full retail price was

​$431.50

and the standard deviation was

​$226.00.

Assume the population is normally distributed and use the​ t-distribution to find the margin of error and construct a

90​%

confidence interval for the population mean

μ.

Interpret the results.

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