claim that the mean age of gamblers playing slot machines is less than the mean age of gamblers playing roulette. The mean age of a random sample of 20 people who were playing the slot machines is 46.7 years, and the standard deviation is 4.2 years. The mean age of a random sample of 24 people who were playing roulette is 53.5 with a standard deviation of 3.0 years. Using a complete test of hypothesis, can it be concluded at α = 0.05 that the mean age of those playing the slot machines is less than those playing roulette? For credit you must show a filled-out formula for the test statistic. You may assume that both samples came from populations that are approximately normal and population variances are not equal. You may
I claim that the mean age of gamblers playing slot machines is less than the mean age of gamblers playing roulette. The mean age of a random sample of 20 people who were playing the slot machines is 46.7 years, and the standard deviation is 4.2 years. The mean age of a random sample of 24 people who were playing roulette is 53.5 with a standard deviation of 3.0 years. Using a complete test of hypothesis, can it be concluded at
α = 0.05 that the mean age of those playing the slot machines is less than those playing roulette? For credit you must show a filled-out formula for the test statistic. You may assume that both samples came from populations that are approximately normal and population variances are not equal. You may refer back to problem 15 for the steps required for a test of hypothesis.
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