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3 years ago

13

A researcher reports survey results by stating that the standard error of the mean is 20. The population standard deviation is 5

00.
a. How large was the sample used in this survey?
b. What is the probability that the point estimate was within ±25 of the population mean?

1 answer:

Mekhanik [1.2K]3 years ago

5 0

multiply 20 by 500. it should help you with the problem.

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