A computer mouse inspector can inspect an average of 50 mice per hour. A random sample of 42 computer mice inspectors at a particular factory was able to inspect an average of 44 mice per hour with a standard deviation of 14. Does the company have reason to believe that the inspectors at this factory are slower than average? Use the critical value approach and α = 0.01

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A computer mouse inspector can inspect an average of 50 mice per hour. A random sample of 42 computer mice inspectors at a particular factory was able to inspect an average of 44 mice per hour with a standard deviation of 14. Does the company have reason to believe that the inspectors at this factory are slower than average? Use the critical value approach and α = 0.01

 

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