The average breaking strength of the steel rods is specified to be 18.5 thousand pounds. To test this sample of 14 rods were tested. The mean and standard deviations obtained were 17.85 and 1.955 respectively. Is the result of the experiment significant?

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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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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The average breaking strength of the steel rods is specified to be 18.5 thousand pounds. To
test this sample of 14 rods were tested. The mean and standard deviations obtained were
17.85 and 1.955 respectively. Is the result of the experiment significant?

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