The Economic Policy Institute periodically issues reports on worker's wages. The institute reported that mean wages for male college graduates were $37.29 per hour and for female college graduates were $27.83 per hour in . Assume the standard deviation for male graduates is $4.60 , and for female graduates it is $4.10 . Use z-table. Round your answers to four decimal places. a. What is the probability that a sample of 50 male graduates will provide a sample mean within $1.00 of the population mean, $37.29? b. What is the probability that a sample of 50 female graduates will provide a sample mean within$1.00 of the population mean,$27.83 ?
The Economic Policy Institute periodically issues reports on worker's wages. The institute reported that
Round your answers to four decimal places.
a. What is the
b. What is the probability that a sample of 50 female graduates will provide a sample mean within$1.00 of the population mean,$27.83 ?
c. In which of the preceding two cases, part (a) or part (b), do we have a higher probability of obtaining a sample estimate within of the population mean? part a or b
Why?
Because the standard error for female graduates is equal to, greater than or smaller than the standard error for male graduates
d. What is the probability that a sample of 50 female graduates will provide a sample mean more than $0.60 below the population mean,$27.83 ?
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