Mathematics, 05.03.2020 15:45 QueenNerdy889

In order to determine an interval for the mean of a population with unknown standard deviation a sample of 61 items is selected. The mean of the sample is determined to be 23. The number of degrees of freedom for reading the t value is .

a 22
b 23
c 60
d 61

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In order to determine an interval for the mean of a population with unknown standard deviation a sam...