Step 1: State the hypotheses. Ho- _H. and teritical= Step 2: The level of significance and the critical region. a=_ and tcomputed -. Step 3: Compute the value of t test. D=, Step 4: Decision rule. . Step 5: Conclusion.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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HYPOTHESIS TESTING:
7. The school director of SSC-R wants to determine if the gate point average (GPA)
of accountancy college students decreases during the last semester of their
junior year. A sample of 10 students selected. Their GPAs for the first and second
semesters of their junior years are: 

1st
90 88
93
96
86
85
92
84
97
92
Semester
2nd
89
90
94
95
90
86
85
82
90
88
Semester
Transcribed Image Text:1st 90 88 93 96 86 85 92 84 97 92 Semester 2nd 89 90 94 95 90 86 85 82 90 88 Semester
Using the 1% is significance level can the director conclude that the GPA of juniors
declined during their second semester?
Solution:
Step 1: State the hypotheses.
Ho-
_H-
Step 2: The level of significance and the critical region. a=
and teritical=
Step 3: Compute the value of t test. D=-
and tcomputed - .
Step 4: Decision rule.
Step 5: Conclusion.
Transcribed Image Text:Using the 1% is significance level can the director conclude that the GPA of juniors declined during their second semester? Solution: Step 1: State the hypotheses. Ho- _H- Step 2: The level of significance and the critical region. a= and teritical= Step 3: Compute the value of t test. D=- and tcomputed - . Step 4: Decision rule. Step 5: Conclusion.
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