Current Attempt in Progress

A rivet is to be inserted into a hole. A random

sample of 15 parts is selected and the hole

diameter is measured. The sample standard

deviation is s= 0.008 millimeters. Is there

strong evidence to indicate that the standard

deviation of hole diameter exceeds 0.01

millimeters? Use a = 0.01.

(a) Calculate the test statistic Round your

answer to two decimal places (eg. 98.76).

(b) Is there strong evidence to indicate that the

standard deviation of hole diameter exceeds

0.01 millimeters?