Grades and AM/PM Section of Stats: There were two large sections of statistics this term at State College, an 8:00 (AM)

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Grades And Am Pm Section Of Stats There Were Two Large Sections Of Statistics This Term At State College An 8 00 Am 1 (60.03 KiB) Viewed 64 times

Grades and AM/PM Section of Stats: There were two large sections of statistics this term at State College, an 8:00 (AM) section and a 1:30 (PM) section. The final grades for both sections are depicted in the contingency table below. Observed Frequencies: O's А D AM PM Totals 6 19 25 B 13 21 34 с 19 18 18 12 F 15 7 22 Totals 71 77 148 37 30 The Test: Test for a significant dependent relationship between grades and the section of the course. Conduct this test at the 0.05 significance level. (a) What is the test statistic? Round your answer to 3 decimal places. x2 = (b) What is the conclusion regarding the null hypothesis? O reject Ho O fail to reject Ho (c) Choose the appropriate concluding statement. We have proven that grades and section of the course are independent. The evidence suggests that there is a significant dependent relationship between grades and the section of the course. There is not enough evidence to conclude that there is a significant dependent relationship between grades and the section of the course.