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    Independent sample t test

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    Periodically Merrill Lynch customers are asked to evaluate Merrill Lynch¯Financial consultants and services (2000 Merrill Lynch Client Satisfactory Survey). Higher ratings on the client satisfaction survey indicate better service with 7 the maximum service
    rating. Independent samples of service ratings for two ¯Financial consultants are summarized below. Consultant A has 10 years of experience while consultant B has 1 year of experience. Using a= .05, test to see whether the consultant with the more experience has the higher population mean service rating.

    Consultant A Consultant B
    x1 = 6.82 x2 = 6.25
    s1 = .64 s2 = .75
    n1 = 16 n2 = 10
    a) State the null and the alternative hypotheses.
    b) Compute the value of the test statistic.
    c) What is the p-value?
    d) What is your conclusion?

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    Solution Summary

    Step by step method for testing the hypothesis under 5 step approach is discussed here. Excel template for each problem is also included. This template can be used to obtain the answers of similar problems.