(b) What is the probability that a sample of 90 female graduates will provide a sample mean within $1.00 of the population mean, $27.83? Let x represent the sample mean hourly wage for a group of 90 females. To be within $1.00 of the population mean of $27.83 gives a range of hourly wages between $27.83 $1.00 = $ and $27.83+ $1.00 = $ Therefore, the desired probability that a sample mean of 90 females is within $1.00 of the population mean is SXS