A former patient, who had both wisdom teeth extracted by two different dentists, claims that the average operating time (in minutes) performed by Dr. Reyes on all his patients is greater than the average operating time (in minutes) performed by Dr. Tupaz on all her patients. A sample of 102 patients attended to by Dr. Reyes had a mean operating time of 95.32 minutes with a population standard deviation of 29.27 minutes. On the other hand, 145 patients who went to the clinic of Dr. Tupaz gave a mean operating time of 84.11 minutes with a population standard deviation of 28.06 minutes. Assuming that both distributions are normal, is there sufficient evidence to support the former patient’s claim at alpha = 0.10? Use the p-value method.
A former patient, who had both wisdom teeth extracted by two different dentists, claims that the average operating time (in minutes) performed by Dr. Reyes on all his patients is greater than the average operating time (in minutes) performed by Dr. Tupaz on all her patients. A sample of 102 patients attended to by Dr. Reyes had a mean operating time of 95.32 minutes with a population standard deviation of 29.27 minutes. On the other hand, 145 patients who went to the clinic of Dr. Tupaz gave a mean operating time of 84.11 minutes with a population standard deviation of 28.06 minutes. Assuming that both distributions are normal, is there sufficient evidence to support the former patient’s claim at alpha = 0.10? Use the p-value method.
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