The manufacturing department ran a quality control test, using 15 randomly selected batteries. In their test, the standard deviation was 5.79 minutes. Suppose they repeated the test with a new random sample of 15 batteries. What is the probability that the standard deviation in the new test would be greater than 5.79 minutes?

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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The manufacturing department ran a quality control test, using 15 randomly selected batteries. In their test, the standard deviation was 5.79 minutes.

Suppose they repeated the test with a new random sample of 15 batteries. What is the probability that the standard deviation in the new test would be greater than 5.79 minutes?

 

ANSWER: 0.01

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