Asked by Sara
A dean wishes to estimate the average cost of the freshman year at a particular college correct to within $500, with a probability of 0.95. If a random sample of freshmen is to be selected and each asked to keep financial data, how many must be included in the sample? Assume that the dean knows only that the range of expenditures will vary from approximately $4800 to $13000.
Answers
Answered by
fara
0.95 confidence find the confidence interval for the mean of the whole population
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