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    independent sample t test

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    Two new york designs are under consideration for possible adoption in an assembly plant. A time study is conducted with 10 workers using design 1, and 12 workers using design 2. The means and standard deviation of their assembly times in minutes are below.

    Design 1 Design 2
    Mean 78.3 minutes Mean 85.6 Minutes
    Standard Deviation 4.8 Standard Deviation 6.5

    Is the mean assembly time significantly higher for work design 2. Test at the 5% level of significance. Defend your position (this means write a brief explanation that the plant manager will understand)

    © BrainMass Inc. brainmass.com June 3, 2020, 10:43 pm ad1c9bdddf
    https://brainmass.com/statistics/students-t-test/246250

    Solution Summary

    The solution provides step by step method for the calculation of test statistic and p value . Formula for the calculation and Interpretations of the results are also included.

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