Mathematics
Mathematics, 07.04.2021 04:40, errr5529

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

answer
Answers: 2

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