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A bicycle manufacturer randomly selects 9 frames each day and tests for defects. The number of...

A bicycle manufacturer randomly selects 9 frames each day and tests for defects. The number of defective frames found over the last 14 days is 1, 1, 2, 2, 1, 2, 2, 0, 1, 0, 4, 6, 0, 4.

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Determine the control limits for the process. (Round your answers to 1 decimal place.)

Comment on whether the process is "in control."

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Answer #1

D = p = Total number of defectives Total number of items Sampled number of frames sampled per day p - 3 BVPlace = LCU UCL p+A E F G 1 Days 1 N B С D Number of frames sampled Number of defective frames Proportion defective 9 1 0.1 9 1 0.1 9 2 0.2 9 2А. Days B Number of frames sampled C Number of defective frames D Proportion defective 9 9 9 1 2 1 3 2 4 3 5 4 6 5 7 6 8 7 10.7 0.6 UCL 0.5 0.4 PROPORTION DEFECTIE 0.3 0.2 0.1 LCL 0.0 0 2 4 10 12 14 6 8 DAYS

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