Mathematics, 16.04.2020 20:32 Doogsterr
You are to conduct a sample survey to determine the mean family income in Washington County, Vermont. The question is how many families should be sampled. In a pilot sample of 10 families the standard deviation was equal to $500. If you want to be 95% confident that the estimate of mean family income will lie within $50 of the true level, how many families must you sample.
Answers: 2
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Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?
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Determine the lengths of the sides of the rectangle using the given area. give answers both exactly and approximately (to the nearest tenth). the area of the rectangle is 46 cm2.
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You are to conduct a sample survey to determine the mean family income in Washington County, Vermont...
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