In performing a hypothesis test where the null hypothesis is that the population mean is 23 against the alternative hypothesis that the population mean is not equal to 23, a random sample of 17 items is selected.The sample mean is 24.6 and the sample standard deviation is 3.3.It can be assumed that the population is normally distributed.The degrees of freedom associated with this are _______.
A)17
B)16
C)15
D)2
E)1

Question

Quizplus · Accepted Answer

The degrees of freedom for a sample of size n is calculated as n - 1. Here, with a sample size of 17, the degrees of freedom are 17 - 1 = 16.

In Performing a Hypothesis Test Where the Null Hypothesis Is