Explore BrainMass

Explore BrainMass

    Hypothesis at a 95% confidence interval for mean weight

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

    A quality control engineer wanted to estimate the mean weight (in grams) of M&M candies being produced on a certain machine in the factory. After collecting an appropriate random sample of M&M candies, he obtained the following weights:

    .81 .86 .85 .79 .98 .84
    .9 .87 .77 .82 .86 .87
    .87 .88 .94 .86 .96 .82
    .88 .98 .75 .86 .93 .82
    .77 .88 .88 .86 .86 .84

    (a) (15) Create a 95% confidence interval for the mean weight of M&M candies.

    (b) (5) The mean weight is supposed to be 0.85 grams. Using your results from part (a), does the equality control engineer have reason to be concerned about the machine in question?

    © BrainMass Inc. brainmass.com June 4, 2020, 2:14 am ad1c9bdddf
    https://brainmass.com/statistics/confidence-interval/hypothesis-confidence-interval-mean-weight-448177

    Solution Summary

    The expert examines the hypothesis at a 95% confidence intervals for mean weights.

    $2.19

    ADVERTISEMENT