9/26/2020
APUS CLE : MATH302 I001 Sum 20 : Tests & Quizzes
1/18
1.0/ 1.0 Points
1.0/ 1.0 Points
Week 8 Test
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Part 1 of 4 - Chi Square Test for Homogeneity
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Question 1 of 20A college prep school advertises that their students are more prepared to succeed in collegethan other schools. To verify this, they categorize GPA’s into 4 groups and look up the proportion of studentsat a state college in each category. They find that 7% have a 0-0.99, 21% have a 1-1.99, 37% have a 2-2.99,and 35% have a 3-4.00 in GPA. They then take a random sample of 200 of their graduates at the state college and find that 19 has a 0-0.99,28 have a 1-1.99, 82 have a 2-2.99, and 71 have a 3-4.00. Can they conclude that the grades of their graduates are distributed differently than the general population atthe school? Test at the 0.05 level of significance.Hypotheses:H0: There is ______ between the general population and the college prep students in GPA.H1: There is ______ between the general population and the college prep students in GPA.Select the best fit choices that fit in the two blank spaces above.
A. no difference, a differenceB. a difference, no differenceC. no difference, no differenceD. a difference, a differenceAnswer Key:
A
Question 2 of 20A college professor is curious if the location of seat in class affects grades in the class. They are teaching ina lecture hall with 240 students. The lecture hall has 10 rows, so they split the rows into 5 sections – Rows 1-2, Rows 3-4,
MATH302 I001 Sum 20
Tests & Quizzes
Tests & Quizzes

9/26/2020
APUS CLE : MATH302 I001 Sum 20 : Tests & Quizzes
2/18
1.0/ 1.0 Points
Rows 5-6, Rows 7-8, and Rows 9-10. At the end of the course, they determine the top 25% of grades in the class, and if thelocation of the seat makes no difference, they would expect that these top 25% of students would be equally dispersedthroughout the classroom. Their observations are recorded below. Run a Goodness of Fit test to determine whether or notlocation has an impact on the grade. Let α=0.05.Hypotheses:H0: Location in the classroom __________impact final grade.H1: Location in the classroom _________ impact final grade.Select the best fit choices that fit in the two blank spaces above.
A