Answered: Professor Fair believes that extra time…

Name: Professor Fair believes that extra time does not improve grades on exa
Uploaded: 2024-03-20T07:07:12.000Z
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Description: Professor Fair believes that extra time does not improve grades on exams. He randomly divided a group of 300 students into two groups and gave them all the same test. One group had exactly 1 hour in which to finish the test, and the other group could

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Professor Fair believes that extra time does not improve grades on exams. He randomly divided a group of 300 students into two groups and gave them all the same test. One group had exactly 1 hour in which to finish the test, and the other group could stay as long as desired. The results are shown in the following table. Test at the 0.01 level of significance that time to complete a test and test results are independent.

Time	A	B	C	F	Row Total
1 h	22	41	56	13	132
Unlimited	19	48	79	22	168
Column Total	41	89	135	35	300

A) Find the sample test statistic. (Round your answer to two decimal places.)

B) Find or estimate the P-value of the sample test statistic.

C) Reject or Fail to reject Null Hypothesis?

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