Reference no: EM132290754

A company making tires for bikes is concerned about the exact width of their cyclotrons tires. The company has a lower specification limit of 24.35 mm and an upper specification limit of 25.65 mm. The standard deviation is 0.2 mm and the mean is 25 mm.

a) Please calculate the process capability index.

b) Comparing to a three sigma process, this process has a lower capability.

True or False

c) What is the probability that a tire is too narrow (narrower than 24.35mm)?

d) What is the probability that a tire is too wide (wider than 25.65mm)?

e) What is the probability that a tire is considered as a defect?

f) Please calculate the parts per million for this process.

g) If the standard deviation is reduced from 0.2 mm to 0.1 mm, the parts per million will

A. Remain the same

B. Decrease to a value that is exactly half of the answer in

C. Decrease to a value than is less than half of the answer in

D. Decrease to a value that is more than half of the answer in f)please calculate the parts per million

For C&D the work must be shown in the excel formula of NORMDIST(     ) or 1-NORMDIST