MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The electric car company also wants to control the quality of the current battery
manufacturing system, so it gathered 15 batches with size 3 from the production line
and calculated the following values for the lifespan of products.
15
15
x, = 5400 > R;
- 50
i=1
i=1
(a) Set up the control charts using these data.
(b) If that the process exhibits statistical control. Estimate the process mean and
standard deviation.
(c) If the lifespan is normally distributed with specifications at 361±7, calculate
the fraction nonconforming produced.
Lithium-ion
Lead-acid
365
370
366
358
369
362
364
364
363
357
365
355
364
366
365
359
369
355
362
356
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Transcribed Image Text:The electric car company also wants to control the quality of the current battery manufacturing system, so it gathered 15 batches with size 3 from the production line and calculated the following values for the lifespan of products. 15 15 x, = 5400 > R; - 50 i=1 i=1 (a) Set up the control charts using these data. (b) If that the process exhibits statistical control. Estimate the process mean and standard deviation. (c) If the lifespan is normally distributed with specifications at 361±7, calculate the fraction nonconforming produced. Lithium-ion Lead-acid 365 370 366 358 369 362 364 364 363 357 365 355 364 366 365 359 369 355 362 356
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