Mathematics, 23.10.2019 20:00 fluffylove83

Aresearcher reports survey results by stating that the standard error of the mean is 20. the population standard deviation is 500.
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?

Answers: 3

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Aresearcher reports survey results by stating that the standard error of the mean is 20. the population standard deviation is 500. 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?

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Aresearcher reports survey results by stating that the standard error of the mean is 20. the population standard deviation is 500.
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?