The Upper and Lower Specifications for Metal Head Plates Are

Multiple Choice

The upper and lower specifications for metal head plates are 5 ±0.1 cm. A sample of the metal head plates in 25 undergraduates yields a mean of 5.05. What is the population standard deviation if the population capability index is 1.666?

A) 0.01
B) 0.02
C) 0.03
D) 0.04
E) 0.05