A large certified public accounting firm has been monitoring the accuracy of its

Question

A large certified public accounting firm has been monitoring the accuracy of its employees and wishes to get the number of accounts with errors under statistical control. It has sampled 100 accounts for each of the last 30 days and has examined them for errors.with the results shown in the accompanying data. Complete parts a through c below. a. Construct a p-chart for the account process. Choose the correct graph below. b. What does the chart indicate about the statistical stability of the process? The process appears to be control. There outside the control limits and there in the data. c. Suppose that for the next 3 days.sample sizes of 100 accounts are examined.and 8.9.and 10 errors.respectively are discovered on those days. Plot the appropriate data on the control chart. Choose the correct graph below. Indicate whether any of the control chart signals are present. Choose the correct answer below. A. The process still appears to be in statistical control. There are

Explanation / Answer

a.) Answer   (B)   

b.) Answer The process appears to be out of control. There are points outside the control limits.

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