Question: Problem 1: Grading policies (15 pts) Three professors are teaching large classes in introductory statistics. At the end of the semester, they compare grades to

Problem 1: Grading policies (15 pts) Three professors are teaching large classes in introductory statistics. At the end of the semester, they compare grades to see if there are signicant differences in their grading policies. Are these differences significant? Prof A B C D F WP WF Smith 12 45 49 6 13 18 2 Jones 10 32 43 18 4 12 6 White 15 19 32 2D 6 9 7 i. (3 pts) Which test are you using? ii. (7 pts) Perform the appropriate test \"by hand\". iii. (5 pts) Perform the test in (ii) \"using a software library&quot

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