Ten samples of a process measuring the number of returns per 100 receipts were taken for a local retail store. The number of returns were 10, 9, 11, 7, 3, 12, 8, 4, 6, 11. Find the standard deviation of the sampling distribution. (Hint- Use p-bar formula)
A) There is not enough information.
B) .081
C) 8.1
D) .0273
E) .0863

Question

Quizplus · Accepted Answer

The standard deviation of the sampling distribution is the standard deviation of the population divided by the square root of the sample size. In this case, the population standard deviation is not known, so we cannot calculate the standard deviation of the sampling distribution.

Ten Samples of a Process Measuring the Number of Returns