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(a) What is the value of X double bar (X bar bar )? Show calculation and final answer together. Carry one decimal place. (b) Develop X bar (X¯) Chart. In this Case, σ=1.3&Z=3. Determine USL and LSL. Show calculation and final answer together. Carry one decimal place

(a) What is the value of X double bar (X bar bar )? Show calculation and final answer together. Carry one decimal place. (b) Develop X bar (X¯) Chart. In this Case, σ=1.3&Z=3. Determine USL and LSL. Show calculation and final answer together. Carry one decimal place

Practical Management Science
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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Question

Sampling 9 boxes per every hour for the past 8 hours has produced the following results:

WEIGHT OF SAMPLE

WEIGHT OF SAMPLE

HOUR

(AVG. OF 9 BOXES)

HOUR

(AVG. OF 9 BOXES)

1

16.1

5

16.3

2

16.0

6

14.8

3

15.5

7

14.0

4

16.4

8

17.3

(a) What is the value of X double bar (X bar bar )? Show calculation and final answer together. Carry one decimal place.

(b) Develop X bar (X¯) Chart. In this Case, σ=1.3&Z=3. Determine USL and LSL. Show calculation and final answer together. Carry one decimal place.

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