In a random sample of six mobile​ devices, the mean repair cost was ​$85.00 and the standard deviation was ​$11.50 Assume the population is normally distributed and use a​ t-distribution to find the margin of error and construct a 90% confidence interval for the population mean. Interpret the results. The 90​% confidence interval for the population mean μ is ​(,). ​(Round to two decimal places as​ needed.)

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Chapter1: Starting With Matlab
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In a random sample of
six
mobile​ devices, the mean repair cost was
​$85.00
and the standard deviation was
​$11.50
Assume the population is normally distributed and use a​ t-distribution to find the margin of error and construct a
90%
confidence interval for the population mean. Interpret the results.
The
90​%
confidence interval for the population mean
μ
is
​(,).
​(Round to two decimal places as​ needed.)
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