Question: PHSTAT output needed, show your work A recent study of 30 city residents showed that the mean of the time they had lived at their

PHSTAT output needed, show your work A recent study of 30 city residents showed that the mean of the time they had lived at their present address was 9.5 years and the standard deviation was 3 years. Assuming a normal population:

Find the 90% confidence interval of the true mean.

Interpret the interval estimate.

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