In: Statistics and Probability
The diameters (in inches) of 1717
randomly selected bolts produced by a machine are listed. Use a
9999% level of confidence to construct a confidence interval for
(a) the population variance σ2
(b) the population standard deviation σ2
Interpret the results.
4.485
3.823
3.947
4.412
3.751
3.755
4.004
4.239
3.888
4.316
3.936
3.819
4.002
4.155
4.435
3.763
4.553