Question

Find the critical value x2r corresponding to a sample size of 19 and a confidence level of 99% if the test is two-tailed

Answer 1

Answer:

For this problem we are assuming that the confidence level is 99% or 0.99, then the significance level would be $\alpha=0.01$ then the value of $\alpha/2 =0.005$ and the degrees of freddom are given by:

$df =n-1 = 19-1=18$

Then the critical values for this case are:

$\chi^2_{\alpha/2}=6.265$

$\chi^2_{1-\alpha/2}=37.156$

Step-by-step explanation:

For this problem we are assuming that the confidence level is 99% or 0.99, then the significance level would be $\alpha=0.01$ then the value of $\alpha/2 =0.005$ and the degrees of freddom are given by:

$df =n-1 = 19-1=18$

Then the critical values for this case are:

$\chi^2_{\alpha/2}=6.265$

$\chi^2_{1- \alpha/2}=37.156$