The average length of time for students to register during the enrolment at a certain college has been 70 minutes. A new registration procedure using modern computing machines is being tried. If a random sample of 61 students had an average registration time of 58 minutes with a standard deviation of 15.9 minutes under the new system, test the hypothesis that the mean is now less than 70, using a level of significance of 0.05. Assume the population of times to be normal. Is this a one-tailed or two-tailed test? What test statistic is to be used? What is the decision rule? What is the computed value of the test statistic? What is your decision/conclusion regarding the null hypothesis?
The average length of time for students to register during the enrolment at a certain college has been 70 minutes. A new registration procedure using modern computing machines is being tried. If a random sample of 61 students had an average registration time of 58 minutes with a standard deviation of 15.9 minutes under the new system, test the hypothesis that the mean is now less than 70, using a level of significance of 0.05. Assume the population of times to be normal. Is this a one-tailed or two-tailed test? What test statistic is to be used? What is the decision rule? What is the computed value of the test statistic? What is your decision/conclusion regarding the null hypothesis?
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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The average length of time for students to register during the enrolment at a certain college has been 70 minutes. A new registration procedure using modern computing machines is being tried. If a random sample of 61 students had an average registration time of 58 minutes with a standard deviation of 15.9 minutes under the new system, test the hypothesis that the
Is this a one-tailed or two-tailed test? What test statistic is to be used? What is the decision rule?
What is the computed value of the test statistic?
What is your decision/conclusion regarding the null hypothesis?
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