Omni Physical Therapy Centers is evaluating two different two different physical conditioning programs for effectiveness in reducing high pulse rates.  Thirty patients are randomly assigned to program A and 25 are assigned to program B.  After 4 months, program A participants showed an average pulse rate reduction of 15.2 beats per minute with a standard deviation of 4.9 beats and program B participants showed an average pulse rate reduction of 12.5 beats per minute with a standard deviation of 5.4 beats.  Set up a hypothesis test to determine whether the difference in the sample means is statistically significant.  Use a significance level of 5%.

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Omni Physical Therapy Centers is evaluating two different two different physical conditioning programs for effectiveness in reducing high pulse rates.  Thirty patients are randomly assigned to program A and 25 are assigned to program B.  After 4 months, program A participants showed an average pulse rate reduction of 15.2 beats per minute with a standard deviation of 4.9 beats and program B participants showed an average pulse rate reduction of 12.5 beats per minute with a standard deviation of 5.4 beats.  Set up a hypothesis test to determine whether the difference in the sample means is statistically significant.  Use a significance level of 5%.

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