B.

Based on the sampling done, what is the value of R ? mm(round your response to three decimal places).

C. What are the UCL and LCL using 3 sigma?

For the given sample size, Mean Factor (A2)=?

Upper control limits=?

Lower Control Limits=?

Based on the x chart the process is (out of control or incontrol)?

D) For the given sample size, Upper Range (D4)=?

Lower range (D3)=?

The control limits for the 3-sigma R-chart are

Upper control limits (Uclr)=?mm

Lower control limits (Lclr)=

Based on the R-chart, the process= (in or out of control)

e) If the true diameter mean should be 155 mm and you want this as your center (nominal) line, what are the new UCL and LCL

Upper control limits-

Lower control limits-

Is the process out of control or in control?

Refer to Table 36.1 - Factors for Computing Control Chart Limits (3 sigma) for this problem. Auto pistons at Wemming Chung's plant in Shanghai are produced in a forging process, and the diameter is a critical factor that mu each day, the mean and the range of this diameter have been as follows: Day Mean x (mm) 154.9 151.2 153.6 157.5 158.6 Range R (mm) 4.0 4.6 4.3 4.8 4.5 a) What is the value of x? x= mm (round your response to two decimal places)