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 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 = (4−0) / 4 =1. Does the sample size seem​ practical? The required sample size is (unknown). ​(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 small number.   B. ​No, because the required sample size is a fairly large number.   C. ​Yes, because the required sample size is a fairly large number.   D. ​Yes, because the required sample size is a fairly small number.

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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 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 = (4−0) / 4 =1. Does the sample size seem​ practical?

The required sample size is (unknown).
​(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 small number.
 
B.
​No, because the required sample size is a fairly large number.
 
C.
​Yes, because the required sample size is a fairly large number.
 
D.
​Yes, because the required sample size is a fairly small number.
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