Squirt Inc. has decided to use a p-Chart with 2-sigma control limits to monitor the proportion of
Question:
Step 1: What is the Center Line of the control chart? Round your answer to three decimal places.
Step 2: What value of z should be used to construct the control chart?
Step 3: What is the Upper Control Limit? Round your answer to three decimal places.
Step 4:What is the Lower Control Limit? Round your answer to three decimal places.
Step 5: At the next time period, 450 industrial belts are sampled and 24 defective industrial belts are detected.
Step 6: At the next time period, 450 industrial belts are sampled and 32 defective industrial belts are detected.
Step 7: At the next time period, 450 industrial belts are sampled and 10 defective industrial belts are detected.
Step 8: You, acting as the quality control manager, have concluded that the process is "Out of Control". What is the probability that the process is really "In Control" and you have made a Type I Error? Round your answer to three decimal places.
Sample 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Detects 7 12 10 11 14 7 10 8 10 9 10 13 13 11 13 14
Statistics for Business and Economics
ISBN: 978-0134506593
13th edition
Authors: James T. McClave, P. George Benson, Terry Sincich