McDaniel Shipyards wants to develop a control chart to assess the quality of its steel plate. They take ten sheets of 1" steel plate and compute the number of cosmetic flaws on each roll. Each sheet is 20' by 100'
Based on the following data, develop limits for the 3-sigma control chart, plot the control chart, and determine whether the process is in control.
Sheet Number of flaws
1 1
2 1
3 2
4 0
5 1
6 5
7 0
8 2
9 0
10 2
Total units sampled 10
Total defects 14
Defect rate, c-bar 1.4
Standard deviation 1.183216
z value 3
Upper Control Limit 4.949648
Center Line 1.4
Lower Control Limit 0
Sample six is above the control limits; therefore, the process is out of control.
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Hunkins Corporation has provided the following data concerning last month's operations. Purchases of raw materials$33,000Indirect materials included in manufacturing overhead$4,000Direct labor cost$58,000Manufacturing overhead applied to Work in Process$91,000 BeginningEndingRaw materials inventory$14,000$20,000Work in process inventory$57,000$70,000 How much is the total manufacturing cost for the month on the Schedule of Cost of Goods Manufactured?
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Deanna, an attorney, has a personal injury case which is set for trial next week. She needs a good doctor to testify on behalf of her client, so she contacts Dr. Dogood who agrees to testify on behalf of Deanna's client at the trial. In return for Dr. Dogood's testimony, Deanna agrees to pay Dr. Dogood $10,000 if they win the case, and $5,000 if they lose. Dr. Dogood agrees. The agreement between
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