Mathematics, 04.06.2021 14:00 SweetBriar
2. A survey of 400 statistics professors was undertaken. Each professor was asked how much time was devoted to teaching graphical techniques. We believe that the times are normally distributed with a standard deviation of 30 minutes. The average time of the survey is 120 minutes. Estimate the population mean with 95% confidence.
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2. A survey of 400 statistics professors was undertaken. Each professor was asked how much time was...
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