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A sample of size n=13has a sample meanx=9.5and sample standard deviation z=3.8It is reasonable to assume that the population is approximately normal. Construct a99%confidence interval

A sample of size n=13has a sample meanx=9.5and sample standard deviation z=3.8It is reasonable to assume that the population is approximately normal. Construct a99%confidence interval for the population mean.

Question 7 options:

A)

(6.3,12.7)

B)

(7.8,11.2)

C)

(6.7,12.3)

D)

(8.6,10.4)

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