Inter State Moving and Storage Company is setting up a control chart to monitor the proportion...

Inter State Moving and Storage Company is setting up a control chart to monitor the proportion of residential moves that result in written complaints due to late delivery, lost items, or damaged items. A sample of 60 moves is selected for each of the last 12 months. The number of written complaints in each sample is 8, 9, 3, 6, 1, 5, 10, 7, 7, 8, 8, and 10.

1. Insert the mean proportion defective, UCL, and LCL. (Round your intermediate calculations and final answers to 2 decimal places.)


Mean proportion defective
UCL
LCL

2. Does it appear that the number of complaints is out of control for any of the months? Yes or No?

Thank you!

Expert Solution

milcah answered 7 months ago

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