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Mathematics, 18.01.2021 14:00, pleasedontspamme
A researcher reports survey results by stating that the standard error of the mean is 25 the population standard deviation is 400. Use z-table.
a. How large was the sample used in this survey?
b. What is the probability that the point estimate was within ±15 of the population mean?
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Answers: 3
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A researcher reports survey results by stating that the standard error of the mean is 25 the populat...
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