Use the data from exercise 11.7 and find Bonferroni-corrected intervals for all three comparisons assuming an overall confidence level of 95%, that is, an individual confidence level of 98.33%. Then state whether the means are significantly different based on whether the intervals capture 0 or not. Compare your conclusions with the conclusions in exercise 11.7.

Exercise 11.7

The website Gasbuddy.com reports the least expensive gas prices in some cities on a daily basis. The following table shows the least expensive gas prices for three cities on June 1, 2018.

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Los Angeles (dollars) Chicago (dollars) Boston (dollars) 3.43 3.04 2.85 3.45 3.09 2.85 3.45 3.12 2.93 3.45 3.15 2.95 3.47 3.15 2.97 3.47 3.16 2.97 3.47 3.16 2.97 3.48 3.16 2.99