8.60 Bootstrap technique for estimation A quality control process consists of crashing cars at various speeds. For a sample of 10 crash tests, the closing speed values (in kilometers per hour) were 61.83, 61.8, 31.82, 61.63, 32.32 32.52, 56.14, 61.67, 56.36, 56.57

a. Explain the steps of how the bootstrap method can be used to get a 95% confidence interval for the standard deviation of the closing speeds of all the crashed cars.

b. Use the Bootstrap web app accessible from the book’s website or software to find the 95% bootstrap confidence interval.