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    The management of White Industries is considering a new method of assembling its golf cart.
    The present method requires 42.3 minutes, on the average, to assemble a cart. The mean assembly
    time for a random sample of 24 carts, using the new method, was 40.6 minutes, and the standard
    deviation of the sample was 2.7 minutes. Using the .10 level of significance, can we
    conclude that the assembly time using the new method is faster?

    © BrainMass Inc. brainmass.com June 3, 2020, 5:24 pm ad1c9bdddf
    https://brainmass.com/statistics/normal-distribution/25059

    Solution Preview

    We can use a t test for the question:
    Ho: M = 42.3
    Ha: M < 42.3
    Calculate Standard Error of the sampling:
    SE= ...

    Solution Summary

    The management of White Industries is considering a new method of assembling its golf cart.
    The present method requires 42.3 minutes, on the average, to assemble a cart. The mean assembly
    time for a random sample of 24 carts, using the new method, was 40.6 minutes, and the standard
    deviation of the sample was 2.7 minutes. Using the .10 level of significance, can we
    conclude that the assembly time using the new method is faster?

    $2.19

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