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 0.013 of the population mean' Assume that a 98% confidence level is desired. If using the range rule of thumb, σ can be estimated as range/4 = 6–0/4 = 1.5. Does the sample size seem practical?

The required sample size is___________________.

(Type a whole number.)

Does the sample size seem practical?

A. Yes, because the required sample size is a fairly large number.

B. No. because the required sample size is a fairly large number.

C. No. because the required sample size is a fairly small number.

D. Yes, because the required sample size is a fairy small number.

Answer rating: 100% (QA)

Critical value of z for 99 confidence interval 001 is z ... View the full answer