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A simple random sample consists of 65 lengths of piano

Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi ISBN: 9780073401331 38

Solution for problem 2E Chapter 6.1

Statistics for Engineers and Scientists | 4th Edition

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Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi

Statistics for Engineers and Scientists | 4th Edition

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Problem 2E

Problem 2E

A simple random sample consists of 65 lengths of piano wire that were tested for the amount of extension under a load of 30 N. The average extension for the 65 lines was 1.102 mm and the standard deviation was 0.020 mm. Let µ represent the mean extension for all specimens of this type of piano wire.

a. Find the P-value for testing H0: ≤ 1.1 versus H1:µ > 1.1.

b. Either the mean extension for this type of wire is greater than 1.1 mm, or the sample is in the most extreme __________ % of its distribution.

Step-by-Step Solution:

Problem 2E

A simple random sample consists of 65 lengths of piano wire that were tested for the amount of extension under a load of 30 N. The average extension for the 65 lines was 1.102 mm and the standard deviation was 0.020 mm. Let µ represent the mean extension for all specimens of this type of piano wire.

a. Find the P-value for testing H0: ? 1.1 versus H1:µ > 1.1.

b. Either the mean extension for this type of wire is greater than 1.1 mm, or the sample is in the most extreme __________ % of its distribution.

Step by step solution:

Step 1:

Given,

Sample size,

Mean,

Standard deviation,

Step 2 of 3

Chapter 6.1, Problem 2E is Solved
Step 3 of 3

Textbook: Statistics for Engineers and Scientists
Edition: 4
Author: William Navidi
ISBN: 9780073401331

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A simple random sample consists of 65 lengths of piano