Question

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2. A man buys 100 electric bulbs of each of two well-known makes, taken at random from stock of
testing purpose. He finds that make'A' has a mean life of 1,300 hours with a standard deviation
of 82 hours and make 'B' has a mean life of 1248 hours with a standard deviation of 93 hours.
Discuss the significance of these results.
3. What do you understand by a Statistical Quality Control? State the advantages and limitations of​

Answer 1

Answer:

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Answer 2

Answer:

Sorry

Step-by-step explanation:

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