Physical Sciences
Amateur radio operators (hams) communicate with one another all over the world, and many help coordinate relief efforts during a natural disaster. Unlike the 5-watt power limit on a CB radio, ham radios can have as much as 1500 watts of power. A random sample of amateur radio operators was obtained from four states. The power on each transmitter was measured (in watts), and the summary statistics are given in the following table.
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Assume the underlying transmitter power distributions are continuous. Use the Kruskal-Wallis test with a = 0.025 to determine whether there is any evidence to suggest that at least two transmitter power populations are different. Find the p value associated with this test.