Explore BrainMass

Explore BrainMass

    Statistical Analysis

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

    1. The yields from an ethanol-water distillation column have a standard deviation of 0.01. Process specifications call for a target yield of 0.93. Management wishes to detect any decrease in the true mean yield.

    a.

    A random sample of 8 recent batches produced the following yields. Conduct a hypothesis test to determine whether the true mean yield has decreased. Use an a=0.01

    0.90 0.93 0.95 0.86
    0.90 0.87 0.93 0.92

    b. Based on the sample of 8 observations in part a, construct a 99% confidence interval
    for the true mean yield of the process.
    c. Discuss the relationship between your response to part a and part b.
    d. What is P, the probability of not rejecting the null hypothesis of part a, when in fact
    the true yield of the process is 0.925? What is (1-P), the probability of rejecting the
    null hypothesis of part a, when in fact the true yield of the process is 0.925?

    © BrainMass Inc. brainmass.com June 3, 2020, 7:00 pm ad1c9bdddf
    https://brainmass.com/statistics/hypothesis-testing/statistical-analysis-82774

    Attachments

    Solution Summary

    Solutions to various statistical questions are provided.
    The solution is detailed and well presented.

    $2.19

    ADVERTISEMENT