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    Quality Check on Water Bottle Volume

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    An airline serves bottles of Galena Spring Water that are supposed to contain an average of
    10 ounces. The filling process follows a normal distribution with process standard deviation
    0.07 ounce. Twelve randomly chosen bottles had the weights shown below (in ounces). (a) Set up
    a two-tailed decision rule to detect quality control violations using the 5 percent level of significance.
    (b) Carry out the test. (c) What assumptions are you making, if any? BottleFill
    10.02 9.95 10.11 10.10 10.08 10.04 10.06 10.03 9.98 10.01 9.92 9.89

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    Solution Preview

    An airline serves bottles of Galena Spring Water that are supposed to contain an average of
    10 ounces. The filling process follows a normal distribution with process standard deviation
    0.07 ounce. Twelve randomly chosen bottles had the weights shown below (in ounces). (a) Set up
    a two-tailed ...

    Solution Summary

    Word document attached carries out a two-tailed test to make sure bottles contain 10 ounces, using 5% significance and listing assumptions made.

    $2.19

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