Assume that all grade-point averages are to be standardized on a scale between 0 and 5. How many grade-point averages must be obtained so that the sample mean is within 0.006 of the population mean? Assume that a 95% confidence level is desired. If using the range rule of thumb, o can be estimated as range/4=5-0/4=1.25. does the sample size seem practical?
The required sample size is___
(Round up to the nearest whole number as needed.)
Does the sample size seem practical?
A. No, because the required sample size is a fairly large number.
B. No, because the required sample size is a fairly small number.
C. Yes, because the required sample size is a fairly small number.
D. Yes, because the required sample size is a fairly large number.
