Posted by **Mary** on Thursday, October 30, 2008 at 10:09am.

According to a student project for statistics 250, the amount of money spent on texts per semester by the population of students at a small liberal arts college is normally distributed with a mean of $426 and a standard deviation of $54.

Determine the percent of all samples of 4 students at the college that spent mean amount of money within $40.50 of the population mean amount.

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