a. Determine three-sigma control limits using the above data. (Round your intermediate calculations to 4 decimal places and final answers to 3 decimal places. Leave no cells blank- be certain to enter "0" wherever required. Round up any negative control limit value to zero.) UCL LCL b. Is the process in control? O Yes
a. Determine three-sigma control limits using the above data. (Round your intermediate calculations to 4 decimal places and final answers to 3 decimal places. Leave no cells blank- be certain to enter "0" wherever required. Round up any negative control limit value to zero.) UCL LCL b. Is the process in control? O Yes
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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please answer all parts within 30 minutes.

Transcribed Image Text:The postmaster of a small western town receives a certain number of complaints each day about mail delivery.
DAY
7
B
5 14
Number of complaints
UCL
LCL
b. Is the process in control?
4
O Yes
O No
2
12
15
4
8
5
9
6
6
9
15
10
7
12
11
6
4
Click here for the Excel Data File
a. Determine three-sigma control limits using the above data. (Round your intermediate calculations to 4 decimal places
and final answers to 3 decimal places. Leave no cells blank - be certain to enter "0" wherever required. Round up any negative
control limit value to zero.)
13
2
14
11
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