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प्रश्न
What do you mean by process control?
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उत्तर
A production process is said to be under control if the products produced are according to the specifications; that is the characteristics are within the tolerance limits.
This is tested through the control charts.
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संबंधित प्रश्न
Define Statistical Quality Control
Define chance cause
Define assignable cause
Write the control limits for the mean chart
Construct `bar"X"` and R charts for the following data:
| Sample Number | Observations | ||
| 1 | 32 | 36 | 42 |
| 2 | 28 | 32 | 40 |
| 3 | 39 | 52 | 28 |
| 4 | 50 | 42 | 31 |
| 5 | 42 | 45 | 34 |
| 6 | 50 | 29 | 21 |
| 7 | 44 | 52 | 35 |
| 8 | 22 | 35 | 44 |
(Given for n = 3, A2 = 1.023, D3 = 0 and D4 = 2.574)
Choose the correct alternative:
The quantities that can be numerically measured can be plotted on a
Choose the correct alternative:
The assignable causes can occur due to
Choose the correct alternative:
A typical control charts consists of
Choose the correct alternative:
R is calculated using
Choose the correct alternative:
The upper control limit for `bar"X"` chart is given by
