question archive 3) According to the best available data, the standard deviation of the times spent by students doing statistics homework is 4
3) According to the best available data, the standard deviation of the times spent by students doing statistics homework is 4
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3) According to the best available data, the standard deviation of the times spent by students doing statistics homework is 4.6 hours. What is the minimum sample size needed so that we may be 90% confident that the margin of error in the sample is no more than 0.5 hours?
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