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    5 step hypothesis testing

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    The problem:
    In Meijer supermarket, the customer's waiting time to check out is approximately normally distributed with a standard deviation of 2.5 minutes. A sample of 25 customer waiting times produced a mean of 8.2 minutes. Is this evidence sufficient to reject the supermarket's claim that its customer checkout time averages no more than 7 minutes? Complete this hypothesis test using the 0.02 level of significance.

    My Problem:
    I am having difficulties obtaining the 5 steps used in solving this with a classical approach.

    © BrainMass Inc. brainmass.com June 3, 2020, 10:24 pm ad1c9bdddf

    Solution Preview

    hello, I can help

    The 5 steps of hypothesis testing are:

    set up the null and alternative hypotheses
    set up the rejection region
    compute the test statistic
    make a decision to reject or not reject the null hypothesis
    write a conclusion that anyone can understand

    Our null hypothesis would be:
    Ho: The average wait time is 7 minutes

    Our alternative would ...

    Solution Summary

    Given a real life example, this posting asks us to perform the 5 step hypothesis testing to see if there is any significant differences in waiting times at a supermarket.