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    Independent sample t test for comparing means

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    Grand Strand Family Medical Center is specifically set up to treat minor medical emergencies for visitors to the Myrtle Beach area. There are two facilities, one in the Little
    River Area and the other in Murrells Inlet. The Quality Assurance Department wishes to
    compare the mean waiting time for patients at the two locations. Samples of the waiting
    times, reported in minutes, follow:

    Location Waiting Time
    Little River 31.73 28.77 29.53 22.08 29.47 18.60 32.94 25.18 29.82 26.49
    Murrells Inlet 22.93 23.92 26.92 27.20 26.44 25.62 30.61 29.44 23.09 23.10 26.69 22.31

    Assume the population standard deviations are not the same. At the .05 significance level,
    is there a difference in the mean waiting time?

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    Solution Summary

    The solution provides step by step method for the calculation of independent sample t test for comparing means. Formula for the calculation and Interpretations of the results are also included.