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

did you get the answer yet?

step-by-step explanation:

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.

you can not solvr this without numbers

um is there supposed to be a picture?