Question

Asked Nov 27, 2019

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The board of directors is meeting to discuss quality on a particular product. The quality supervisor wants to create a chart that is easy to understand. What chart would you choose? Use n = 50 and p = 0.09 to calculate the control limits and centerline. Create and interpret this chart.

Step 1

We will choose control chart to understand the quality of particular product with time to time.

Given that,

n = 50

p = 0.09

Step 2

Given data of subgroup number and nonconforming is,

Subgroup Number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |

Nonconforming | 5 | 4 | 3 | 2 | 6 | 18 | 5 | 8 | 2 | 2 |

The formula to calculate mean or center line is,

Step 3

Substitute 50 for *n* and 0.09 for *p* in t...

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