The computed test statistic for the appropriate test is
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter29: Tolerance, Clearance, And Interference
Section: Chapter Questions
Problem 16A: Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector...
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A mathematics professor wants to determine whether there is a difference in the final averages between the past two semesters (semester 1 and semester 2) of his business statistics classes. For a random sample of 16 students from semester 1, the mean of the final averages was 75 with a standard deviation of 4. For a random sample of nine students from semester 2, the mean was 73 with a standard deviation of 6.
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