Stats Test Scores Your textbook author, Mario Triola, is a professor in ny. Dver time, his students' test scores have had a
standard deviation equal to 14.1. A particular class had 27 scores with a standard deviation of 9.3.
11) Use a 0.01 significance level to test the claim that this class has less variation than other past classes.
12) Does the lower standard deviation imply that the students are doing better?
How to find the p-value