(Solved): Assume that all grade-point averages are to be standardized on a scale between 0 and 6 . How many g ...

Assume that all grade-point averages are to be standardized on a scale between 0 and 6 . How many grade-point averages must be obtained so that the sample mean is within \( 0.006 \) of the population mean? Assume that a \( 98 \% \) confidence level is desired. If using the range rule of thumb, \( \sigma \) can be estimated as \( \frac{\text { range }}{4}=\frac{6-0}{4}=1.5 \). Does the sample size seem practical? The required sample size is (Round up to the nearest whole number as needed.)