-For questions 1,2,3 & 5 use the Z values. For question 4(body temperature for part A, use the "t" distributions and for part B use (Chi-square).

Assume that all grade point averages are to be standardized on a scale between 0 and 4. How many grade-point averages must be obtained so that the sample mean is within .02 of the population mean? Assume a 99% confidence interval and a standard deviation of 1.