Mathematics, 19.08.2021 02:00, ranaaf

he weekly earnings of students in one age group are normally distributed with a standard deviation of96dollars. A researcher wishes to estimate the mean weekly earnings of students in this age group. Find thesample size needed to assure with 95 percent confidence that the sample mean will not differ from thepopulation mean by more than5 dollars.

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he weekly earnings of students in one age group are normally distributed with a standard deviation o...