Abbott & Sons needs to forecast the mean age, , of its hourly workforce. A random sample of personnel files is pulled with the results

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Abbott & Sons needs to forecast the mean age, µ, of its hourly workforce. A random sample of personnel files is pulled with the results below. Prepare both a point estimate and a 98% confidence interval for the mean age of the entire workforce. Test the hypothesis H0: µ = 44 versus H1: µ ≠ 44 at the 2% level. Are the results of the hypothesis test consistent with the confidence interval for µ? Would you expect them to be?
= 45.2S = 10.3n = 175

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n 175 Point estimate 98 confidence interval 1 98 Z 233 434 470 Hypothe... View full answer

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