For the following exercises, use the traditional method of hypothesis testing unless otherwise specified.

Three different groups of monkeys were fed three different medications for one month to see if the medication has any effect on reaction time. Each monkey was then taught to repeat a series of steps to receive a reward. The number of trials it took each to receive the reward is shown. At α = 0.05, does the medication have an effect on reaction time? Use the Kruskal-Wallis test. Use the P-value method.

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