SOLUTION: Suppose that a random sample of five observations was taken from a normal population whose variance is 25. The results are 8, 15, 12, 6, 7. Find the 99% confidence interval estimat
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Question 1176586: Suppose that a random sample of five observations was taken from a normal population whose variance is 25. The results are 8, 15, 12, 6, 7. Find the 99% confidence interval estimate of the
population mean? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! sd is sqrt(V)=5
99%CI half-interval is z(0.995)*5/sqrt(n)
mean of sample is 9.6
half-interval is 2.576*5/sqrt(5)=5.76
the interval is (3.84, 15.36)
