Assume that all grade-point averages are to be standardized on a scale between 0 and 44. How many grade-point averages must be obtained so that the sample mean is within XXXXXXXXXX of the...

Assume that all grade-point averages are to be standardized on a scale between 0 and

44.

How many grade-point averages must be obtained so that the sample mean is within

0.0060.006

of the population mean? Assume that a

9999%

confidence level is desired. If using the range rule of thumb,

sigmaσ

can be estimated as

StartFraction range Over 4 EndFractionrange4equals=StartFraction 4 minus 0 Over 4 EndFraction4−04equals=11.

Does the sample size seem practical?

The required sample size is

nothing.

Jun 02, 2022

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