A researcher is interested in estimating the mean value for a population.She takes a random sample of 17 items and computes a sample mean of 224 and a sample standard deviation of 32.She decides to construct a 98% confidence interval to estimate the mean.The degrees of freedom associated with this problem are ___.
A)18
B)17
C)16
D)15
E)20

Question

Quizplus · Accepted Answer

The degrees of freedom associated with this problem is n-1, where n is the sample size. Therefore, degrees of freedom = 17-1 = 16.

A Researcher Is Interested in Estimating the Mean Value for a Population.She