Every hour, a random sample of two small boxes is collected and the weight of each box is measured. Results from 7 samples: loight (aramc)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Please answer the following questions #4, #5, and #6

Every hour, a random sample of two small boxes is collected and
the weight of each box is measured. Results from 7 samples:
Weight (grams)
k
2
4. What is the upper control limit for the R-chart?
227
241
267
247
5. What is the lower control limit for the xbar-chart?
3
251
240
4
262
270
6. What is the upper boundary value between Zone A
and Zone B for the xbar-chart?
5
242
249
275
232
7
252
268
Transcribed Image Text:Every hour, a random sample of two small boxes is collected and the weight of each box is measured. Results from 7 samples: Weight (grams) k 2 4. What is the upper control limit for the R-chart? 227 241 267 247 5. What is the lower control limit for the xbar-chart? 3 251 240 4 262 270 6. What is the upper boundary value between Zone A and Zone B for the xbar-chart? 5 242 249 275 232 7 252 268
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The measured weights of a random sample of two small boxes are given.

The results are from 7 boxes.

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