Question

Fill in the blank with the appropriate value.When constructing a confidence interval for a population mean μ from a sample of size 19, the number of degrees offreedom for the critical value f/2 is

Answer 1

Answer

The degree of freedom = 18

Explanation

Given:

Sample size = 19

What to find:

The number of degrees of freedom for the critical value f/2.

Solution:

The formula to calculate the degree of freedom is:

$\begin{gathered} DOF=N-1 \\ \end{gathered}$

Put N = sample size = 19

$\begin{gathered} DOF=19-1 \\ \\ DOF=18 \end{gathered}$

Hence, the number of degrees of freedom for the critical value f/2 is 18