Answered: UCL-1.77 Ru-2.24 LCL-6.26 Sample 120…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 7SGR

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Question

Use the following two control charts that result from testing batches of newly manufactured aircraft altimeters, with 100 in each batch. The original sample values are errors (in feet) obtained when the altimeters are tested in a pressure chamber that simulates an altitude of 6000ft. The Federal Aviation Administration requires an error of no more than 40 ft at that altitude.

Is the process variation within statistical control? Why or why not?

UCL-1.77
Ru-2.24
LCL-6.26
Sample
120
UCL=91.4
90-
R-67.0
60-
LCL-42.5
30-
10
12
18
20
Sample
Sample Range
Sample Mean

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