Question

In each of several consecutive days of production of certain AAA batteries, 75 batteries are tested...

In each of several consecutive days of production of certain AAA batteries, 75 batteries are tested and the number of defects each day are listed below:

8, 6, 16, 6, 8, 12, 6, 2.

For the control chart for the proportion of deficient batteries produced during the 8 days, find the following:

(a) The center line: p¯=p¯=  

(b) The proportion: q¯=q¯=  

(c) The upper control limit: UCL =  

(d) The lower control limit: LCL=  

If your answer to (c) and/or (d) is not a whole number, then enter it to 10 decimal places.

Homework Answers

Answer #1

Here we have find out the control limits for the proportion of defects. Detailed solution is attached here:

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