An educational researcher wishes to know if there is a difference in academic performance for college freshmen that live on campus and those that commute. Data was collected from 336 students. Can we conclude that freshman housing location and academic performance are related? Location           Average            Below Average        Above Average       TotalOn campus          99                           89                           89                    277Off campus          41                           10                            8                      59Total                   140                           99                           97                    336   A) State the null and alternative hypothesis. B) Find the expected value for the number of students that live on campus and have academic performance that is average. Round your answer to one decimal place. C) Find the expected value for the number of students that live on campus and have academic performance that is above average. Round your answer to one decimal place. D) Find the value of the test statistic. Round your answer to three decimal places. E) Find the degrees of freedom associated with the test statistic for this problem. F) Find the critical value of the test at the 0.01 level of significance. Round your answer to three decimal places. G) Make the decision to reject or fail to reject the null hypothesis at the 0.01 level of significance. H) State the conclusion of the hypothesis test at the 0.01 level of significance.

College Algebra
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ISBN:9781337282291
Author:Ron Larson
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Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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An educational researcher wishes to know if there is a difference in academic performance for college freshmen that live on campus and those that commute. Data was collected from 336 students. Can we conclude that freshman housing location and academic performance are related?

Location           Average            Below Average        Above Average       Total
On campus          99                           89                           89                    277
Off campus          41                           10                            8                      59
Total                   140                           99                           97                    336

 

A) State the null and alternative hypothesis.

B) Find the expected value for the number of students that live on campus and have academic performance that is average. Round your answer to one decimal place.

C) Find the expected value for the number of students that live on campus and have academic performance that is above average. Round your answer to one decimal place.

D) Find the value of the test statistic. Round your answer to three decimal places.

E) Find the degrees of freedom associated with the test statistic for this problem.

F) Find the critical value of the test at the 0.01 level of significance. Round your answer to three decimal places.

G) Make the decision to reject or fail to reject the null hypothesis at the 0.01 level of significance.

H) State the conclusion of the hypothesis test at the 0.01 level of significance.

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