Analysis of Last Digits Weights of respondents were recorded as part of the California Health Interview Survey. The last digits of weights from 50 randomly selected respondents are listed below.

5 0 1 0 2 0 5 0 5 0 3 8 5 0 5 0 5 6 0 0 0 0 0 0 8 5 5 0 4 5 0 0 4 0 0 0 0 0 8 0 9 5 3 0 5 0 0 0 5 8

a. Use the bootstrap method with 1000 bootstrap samples to find a 95% confidence interval estimate of s.

b. Find the 95% confidence interval estimate of s found by using the methods of Section 7-3.

c. Compare the results. If the two confidence intervals are different, which one is better? Why?