The average length of time for students to register for classes at a certain college has been 50 minutes. A new registration procedure using modern computing machines is being tried. If a random sample of 12 students had an average registration time of 42 minutes with a standard deviation of 11.9 minutes under the new system, test the hypothesis that the population mean is now less than 50 using 0.01 level of significance. Assume the population of times to be normal. Step 1: Null and Alternative Hypothesis Но: На: Step 2: Level of Significance and appropriate test statistic Step 3: Determine the Critical Region Critical Region: Step 4: Compute the z-value Computations:

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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The average length of time for students to register for classes at a certain college has been 50
minutes. A new registration procedure using modern computing machines is being tried. If a random
sample of 12 students had an average registration time of 42 minutes with a standard deviation of
11.9 minutes under the new system, test the hypothesis that the population mean is now less than 50
using 0.01 level of significance. Assume the population of times to be normal.
Step 1: Null and Alternative Hypothesis
Но:
На:
Step 2: Level of Significance and appropriate test statistic
Step 3: Determine the Critical Region
Critical Region:
Step 4: Compute the z-value
Computations:
Transcribed Image Text:The average length of time for students to register for classes at a certain college has been 50 minutes. A new registration procedure using modern computing machines is being tried. If a random sample of 12 students had an average registration time of 42 minutes with a standard deviation of 11.9 minutes under the new system, test the hypothesis that the population mean is now less than 50 using 0.01 level of significance. Assume the population of times to be normal. Step 1: Null and Alternative Hypothesis Но: На: Step 2: Level of Significance and appropriate test statistic Step 3: Determine the Critical Region Critical Region: Step 4: Compute the z-value Computations:
Step 6: Conclusion
Transcribed Image Text:Step 6: Conclusion
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