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    One way ANOVA

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    A manufacturer of batteries is considering three new battery designs. An attempt was made to determine whether the mean lifetime in hours is the same for each of the three designs.

    Design A Design B Design C

    78 112 115
    98 99 101
    88 101 100
    96 116 120

    Test to see whether the population means of the three populations are equal. Use a 95% level of confidence.

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    Solution Summary

    Step by step method for computing test statistic for One way ANOVA is given in the answer.