8)Given the following information from a completed Xbar and R chart that was in statistical control, calculate the Cp and Cpk indices. Is the process capable?Are defective parts being made?Mathematical analysis required for credit. (8 points)

X double bar = 210,R bar = 4.65,n = 5, LSL = 200,USL = 230,

8)For the following statements indicate if they are TRUE or FALSE.(2 points each)

__________A process is in statistical control when only common cause variation is present.

__________A process is in statistical control as long as the assignable cause variation does not exceed the upper and

lower control limits.

__________The Cp index measures the potential of a process to meet customer specifications.

__________The Cp index determines if the process is in a "state of statistical control".

__________The Cpk index helps you understand if assignable cause variation exists in the process.

__________The Cpk index indicates if a process is actually meeting the customer specifications.

__________Control limits on an X Bar and R chart are given to you by the customer.

__________Control limits on the X Bar and R chart help determine if the process is in a "state of statistical control".

__________Control limits on the X Bar and R chart are boundaries that allow you to determine if the products you are

making are satisfying your customer.

__________Common cause variation exists in every process.