Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that corresponds to a sample of size 9 with a mean of 85.2 and a standard deviation of 7.2 at a confidence...

Assume that a sample is used to estimate a population mean μμ. Find the margin of error
M.E.
that corresponds to a sample of size 9 with a mean of 85.2 and a standard deviation of 7.2 at a confidence level of 99%.


Report ME accurate to one decimal place because the sample statistics are presented with this accuracy.


M.E.
=



Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.