Explore BrainMass

Explore BrainMass

    Hi square test of GOF

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    1.
    A watch manufacturer creates watch springs whose properties must be consistent. In particular, the standard deviation in their weights must be no greater than 2.0 grams. Fifteen watch springs are selected from the production line and measured; their weights are 8, 3, 4, 8, 1, 4, 4, 9, 9, 2, 8, 4, 9, 7, and 7 grams. Assume = 0.01.
    · State the null and alternate hypotheses
    · Calculate the sample standard deviation
    · Determine which test statistic is appropriate (chi-square or F), and calculate its value.
    · Determine the critical value(s).
    · State your decision: Should the null hypothesis be rejected?

    © BrainMass Inc. brainmass.com June 3, 2020, 11:37 pm ad1c9bdddf
    https://brainmass.com/statistics/chi-squared-test/hi-square-test-gof-288219

    Solution Preview

    Null hypothesis
    1.
    A watch manufacturer creates watch springs whose properties must be consistent. In particular, the standard deviation in their weights must be no greater than 2.0 grams. Fifteen watch springs are selected from the production line and measured; their weights are 8, 3, 4, 8, 1, 4, 4, 9, 9, 2, 8, 4, 9, 7, and 7 grams. Assume = 0.01.
    · State the null and alternate hypotheses
    · Calculate the sample standard deviation
    · Determine which test statistic is appropriate (chi-square or F), and ...

    Solution Summary

    Step by step method for testing the hypothesis under 5 step approach is discussed here. Excel template for each problem is also included. This template can be used to obtain the answers of similar problems.

    $2.19

    ADVERTISEMENT