Question

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 24 with a mean of 24.2 and a standard deviation of 5.5 at a confidence level of 99.8%.

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.

Answer 1

soluation given that: ir n=24 The confidence x = 24.2 level s=5. 51 of 99.8yN The matgin of error M. E La 0.002 d oool Critied cal Value do F= (n-1) = 23 txt, nt - 3.485 critical value = 3:4857 ME= Za tarzani in 3.485 √24 3.485* 1.123 - ME = 3.9