In a random sample of six mobile devices, the mean repair cost was $75.00 and the standard deviation was $11.00. Assume the population is normally distributed and use a t-distribution to find the margin of error and construct a 99% confidence interval for the population mean. Interpret the results. The 99% confidence interval for the population mean µ is ( ). (Round to two decimal places as needed.)

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6.2.20-T
In a random sample of six mobile devices, the mean repair cost was $75.00 and the standard deviation was $11.00. Assume the population is normally distributed and
use a t-distribution to find the margin of error and construct a 99% confidence interval for the population mean. Interpret the results.
The 99% confidence interval for the population mean µ is ( ).
(Round to two decimal places as needed.)
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Transcribed Image Text:Homework: HW 6.2 Save 11 of 15 (2 complete) 6.2.20-T In a random sample of six mobile devices, the mean repair cost was $75.00 and the standard deviation was $11.00. Assume the population is normally distributed and use a t-distribution to find the margin of error and construct a 99% confidence interval for the population mean. Interpret the results. The 99% confidence interval for the population mean µ is ( ). (Round to two decimal places as needed.) Enter your answer in the edit fields and then click Check Answer. Check Answer Clear All 2 parts remaining
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