Police cars ambulances and other emergency vehicles are required to
Police cars, ambulances, and other emergency vehicles are required to carry road flares. One of the most important features of flares is their burning times. To help decide which of four brands on the market to use, a police laboratory technician measured the burning time for a random sample of 10 flares of each brand. The results were recorded to the nearest minute.
a. Can we conclude that differences exist between the burning times of the four brands of flares?
b. Apply Fisher’s LSD method with the Bonferroni adjustment to determine which flares are better.
c. Repeat Part b using Tukey’s method.

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