Question: A simple random sample of 26 filtered 100-mm cigarettes is obtained from a normally distributed population , and the tar content of each cigarette is measured. The sample has a standard deviation of 0.16 mg. Use a 0.01 significance level to test the claim that the tar content of filtered 100-mm cigarettes has a standard deviation different from 0.20 mg. Which is the standard deviation for unfiltered king size cigarettes.

1.) Find the test statistic

2.) Find the P-Value of the test statistic

3.) State the final conclusion