In a manufacturing process the assembly line speed (feet per minute) was thought to af- fect the number of defective parts found during the inspection process. To test this theory, managers devised a situation in which the same batch of parts was inspected visually at a variety of line speeds. They collected the following data. Number of Defective Line Speed
In a manufacturing process the assembly line speed (feet per minute) was thought to af- fect the number of defective parts found during the inspection process. To test this theory, managers devised a situation in which the same batch of parts was inspected visually at a variety of line speeds. They collected the following data. Number of Defective Line Speed
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter3: Straight Lines And Linear Functions
Section3.CR: Chapter Review Exercises
Problem 16CR: XYZ Corporation Stock Prices The following table shows the average stock price, in dollars, of XYZ...
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Transcribed Image Text:62 In a manufacturing process the assembly line speed (feet per minute) was thought to af-
fect the number of defective parts found during the inspection process. To test this theory,
managers devised a situation in which the same batch of parts was inspected visually at a
variety of line speeds. They collected the following data.
Number of Defective
Parts Found
Line Speed
20
20
21
19
40
30
60
15
16
14
40
17
a. Develop the estimated regression equation that relates line speed to the number of
defective parts found.
b. At a .05 level of significance, determine whether line speed and number of defective
parts found are related.
Did the estimated regression equation provide a good fit to the data?
d. Develop a 95% confidence interval to predict the mean number of defective parts for
a line speed of 50 feet per minute.
c.
63, A sociologist wac hiuod
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