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प्रश्न
Choose the correct alternative:
The quantities that can be numerically measured can be plotted on a
विकल्प
p – chart
c – chart
x bar chart
np – chart
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उत्तर
x bar chart
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संबंधित प्रश्न
Mention the types of causes for variation in a production process
What do you mean by product control?
Define the mean chart
What are the uses of statistical quality control?
A quality control inspector has taken ten samples of size four packets each from a potato chips company. The contents of the sample are given below, Calculate the control limits for mean and range chart.
| Sample Number | Observations | |||
| 1 | 2 | 3 | 4 | |
| 1 | 12.5 | 12.3 | 12.6 | 12.7 |
| 2 | 12.8 | 12.4 | 12.4 | 12.8 |
| 3 | 12.1 | 12.6 | 12.5 | 12.4 |
| 4 | 12.2 | 12.6 | 12.5 | 12.3 |
| 5 | 12.4 | 12.5 | 12.5 | 12.5 |
| 6 | 12.3 | 12.4 | 12.6 | 12.6 |
| 7 | 12.6 | 12.7 | 12.5 | 12.8 |
| 8 | 12.4 | 12.3 | 12.6 | 12.5 |
| 9 | 12.6 | 12.5 | 12.3 | 12.6 |
| 10 | 12.1 | 12.7 | 12.5 | 12.8 |
(Given for n = 5, A2 = 0.58, D3 = 0 and D4 = 2.115)
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Variations due to natural disorder is known as
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The assignable causes can occur due to
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`bar"X"` chart is a
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R is calculated using
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The LCL for R chart is given by
