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A researcher claims that the mean number of minutes people spend reading a book each day...

A researcher claims that the mean number of minutes people spend reading a book each day is less than 5 minutes. A random sample of 30 people read a mean of 4.7 minutes with a standard deviation of 1.36. Test the researchers claim at the 0.01 level of significance.

statistics. determine hypothesis and calculate

Math   Statistics-And-Probability   
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