Question: PROBLEM 3 . Marble Inc. makes countertops from a variety of high - end materials. To monitor the quality of its production processes, the company

PROBLEM

3 .

Marble Inc. makes countertops from a variety of high

-

end materials. To monitor the quality of its production processes, the company randomly selects one countertop and counts the number of blemishes. The results for ten samples are shown below:

Sample No

. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

Using

+ - 3

limits

,

calculate the LCL and UCL for these data. Is the process under control? Mark the correct answer

PROBLEM 3. Marble Inc. makes countertops from a variety of high-end

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