Introduction to Statistical Quality Control
7th Edition
ISBN: 9781118146811
Author: Montgomery, Douglas C.
Publisher: John Wiley & Sons Inc
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Chapter 3, Problem 8E
The time to failure in hours of an electronic component subjected to an accelerated life test is shown in Table 3E.1. To accelerate the failure test, the units were tested at an elevated temperature (read down, then across).
- (a) Calculate the sample average and standard deviation.
- (b) Construct a histogram.
- (c) Construct a stem-and-leaf plot.
- (d) Find the sample
median and the lower and upperquartiles.
TABLE 3E.1 Electronic Component Failure Time
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Chapter 3 Solutions
Introduction to Statistical Quality Control
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