Students use many kinds of criteria when selecting courses. Teacher who is a very easy grader is

Question:

Students use many kinds of criteria when selecting courses. €œTeacher who is a very easy grader€ is often one criterion. Three teachers are scheduled to teach statistics next semester. A sample of previous grade distributions for these three teachers is shown here.

At the 0.01 level of significance, is there sufficient evidence to conclude €œThe distribution of grades is not the same for all three professors?€
a. Solve using the p-value approach.
b. Solve using the classical approach.
c. Which professor is the easiest grader? Explain, citing specific supporting evidence.

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...