# BUSN 603 BUSN603 Problem Set 7 Answer (APUS)

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BUSN 603 Quantitative Analysis Problem Set 7 Answer (APUS)

 This part of the question is based on the following information. When set at the standard position, Autopitch can throw hard balls toward a batter at an average speed of 60 mph. Autopitch devices are made for both major- and minor-league teams to help them improve their batting averages. Autopitch executives take samples of 10 Autopitch devices at a time to monitor these devices and to maintain the highest quality. The average range is 3 mph. Using control chart techniques, determine control-chart limits for averages and ranges for Autopitch. Please use the attached table or Excel QM to answer the following questions.
1. Based on the attached table or Excel QM, the upper control limit for averages is
2. Based on the attached table or Excel QM, the lower control limit for averages isÂ

3. Based on the attached table or Excel QM, the upper control limit for ranges

4. Based on the attached table or Excel QM, the lower control limit for ranges is

5. The overall average of these means is_Â and the overall average range is

6. Based on the result in Question 5 and the attached table for Part 1 or Excel QM, the upper control limit for a 99.7% control chart for the mean/average is

7. Based on the result in Question 5 and the attached table in Part 1 or Excel QM, the lower control limit for a 99.7% control chart for the mean/average is

8. Does this process appear to be in control in terms of the mean?

9. Based on the result in Question 5 and the attached table for Part 1 or Excel QM, the upper control limit for a 99.7% control chart for the range isÂ

10. Does this process appear to be in control in terms of the range?

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