For numbers 22 to 24: The average length of time forthe students to re summer dasses at a certain university has been 50 minutes with avarian Anewregistration pro cedure using computers is being tried In arandor of 30 students, themean registration time was 42 minutes. Test the hypo that the averagelength of time for registration has been shortened duet system. 2. What is the value of the test statistic? A -4.382 B. 5.014 C. 2.033 D. 1.5 3. At a 0.05level of significance, whatis the critical value?

MATLAB: An Introduction with Applications
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For numbers 22 to 24: The averagelength of time for the students to register for
summer dasses at a certain university has been 50minutes with avariance of 100.
Anewregistration pro cedure using computers is being tried hn arandom sample
of 30 students, the mean registration time was 42 minutes. Test the hypothesis
that the averagelength of time for registration has been shortened due to the new
system.
22. What is the value of the test statistic?
B. 5.014
A -4.382
C 2.033
D. 1.584
23. At a 0.05level of significance, whatis the aritical value?
C -1.96
A -2.045
B. -1.645
D. -1.699
24. What can you condude aboutthe new system of registration?
A Thereis enough evidence that thenew system registration shortened the
average length of time for students to register.
B. Thereis in sufficient evidence that the new system of registration
shortened the average length of time for students to register.
C Thereis not enough datato make a condusion
D. Thenew system of registrationis not effective in decreasing the average
length of time for registration.
Transcribed Image Text:For numbers 22 to 24: The averagelength of time for the students to register for summer dasses at a certain university has been 50minutes with avariance of 100. Anewregistration pro cedure using computers is being tried hn arandom sample of 30 students, the mean registration time was 42 minutes. Test the hypothesis that the averagelength of time for registration has been shortened due to the new system. 22. What is the value of the test statistic? B. 5.014 A -4.382 C 2.033 D. 1.584 23. At a 0.05level of significance, whatis the aritical value? C -1.96 A -2.045 B. -1.645 D. -1.699 24. What can you condude aboutthe new system of registration? A Thereis enough evidence that thenew system registration shortened the average length of time for students to register. B. Thereis in sufficient evidence that the new system of registration shortened the average length of time for students to register. C Thereis not enough datato make a condusion D. Thenew system of registrationis not effective in decreasing the average length of time for registration.
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