In a random sample of fourmicrowave ovens, the mean repair cost was $85.00and
In a random sample of fourmicrowave ovens, the mean repair cost was $85.00and the standard
deviation was $12.00.
Assume the population is normally distributed and use at-distribution to construct a 95%
confidence interval for the population mean muμ.
What is the margin of error of muμ?
Interpret The 95%
confidence interval for the population mean muμ ?
The margin of error is?
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