A sample of 59 items is collected in order to determine an interval for the mean...
A sample of 59 items is collected in order to determine an interval for the mean of a population with unknown standard deviation. The sample mean is 23. The number of degrees of freedom required to look up the t value is
A. 22.
B. 58.
C. 59.
D. 24.
E. 23.
Homework Answers
Solution :
= 23
sample size = n = 59
Degrees of freedom (df) = n - 1
= 59 - 1
(df) = 58
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