Yelp Dog Food produces specialized dog foods in 1-pound packages. The amount of dog food in each package should be 1 pound, and Yelp has determined that the standard deviation of the machine filling these packages is half an ounce, and the confidence interval is 14.85% (z = .1872). In order to confirm that the machine is operating properly, Yelp takes 16 sample bags every hour and weighs them. The means of these 16 bags for an 8-hr shift is given below. 1 2 3 4 5 6 7 8 0.98 1.01 0.97 1.03 1.01 0.94 1.02 1.02 NARREND What would be the lower control limit? .9038 .9567 .9741 .9892

Practical Management Science
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ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
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Yelp Dog Food produces specialized dog foods in 1-pound packages. The amount of dog food in each package should be 1 pound, and Yelp has determined that the standard deviation of the machine filling these packages is half an ounce, and the confidence interval is 14.85% (z = .1872). In order to confirm that the machine is operating properly, Yelp takes 16 sample bags every hour and weighs them. The means of these 16 bags for an 8-hr shift is given below.

1

2

3

4

5

6

7

8

0.98

1.01

0.97

1.03

1.01

0.94

1.02

1.02

NARREND

  1. What would be the lower control limit?
  2. .9038
  3. .9567
  4. .9741
  5. .9892
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