EBK CENGAGENOW FOR WEIERS' INTRODUCTION
7th Edition
ISBN: 9780840057655
Author: WEIERS
Publisher: VST
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Textbook Question
Chapter 3, Problem 3.57CE
A quality control supervisor has taken a sample of 16 bolts from the output of a thread-cutting machine and tested their tensile strengths. The results, in tons of force required for breakage, are as follows:
2.20 1.95 2.15 2.08 1.85 1.92
2.23 2.19 1.98 2.07 2.24 2.31
1.96 2.30 2.27 1.89
a. Determine the
b. Calculate the mean absolute deviation.
c. Calculate the standard deviation and variance.
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A quality control supervisor has taken a sample of 16 bolts from the output of a thread-cutting machine and tested their tensile strengths. The results in tons of force required for brekage, are as follows: 2.20 1.95 2.15 2.08 1.85 1.92 2.23 2.19 1.98 2.07 2.24 2.31 1.96 2.30 2.27 1.89 (a) Determine the mean, median, range and midrange. (b) Calculate the mean absolute deviation (c) Calculate the standard deviation and variance. (d) Calculate the coefficient of skewness. (e) what is the i. 75th percentile ii. 68th percentile and 6th decile.
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Chapter 3 Solutions
EBK CENGAGENOW FOR WEIERS' INTRODUCTION
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