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Answer to Question #18391 in Statistics and Probability for ADANE HAILU

Question #18391
1. Find the 95 per cent confidence interval for the mean age of the population from which the Resident sample was drawn ( = 46.06; s = 17.97).
Expert's answer
Z-score that corresponds to 95%confidence is 1.96, so, the confidence interval is
[46.06-1.96*17.97,46.06+1.96*17.97]=[10.84,81.28]

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