A sample of 55 night-school students ages is obtained in, Ask an Expert

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A sample of 55 night-school students' ages is obtained in order to estimate the mean age of night-school students. x = 25 years. The population variance is 22.

(a) Give a point estimate for ?. (to one decimal place)

(b) Find the 95% confidence interval for ?. (Give your answer correct to two decimal places.)

Lower Limit:

Upper Limit

Lower Limit:

Upper Limit:

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9990627

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