Explore BrainMass

Explore BrainMass

    Solution to "Statistics - Confidence Interval" question

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

    A random sample of 200 bolts from machine A contained 14 defective bolts, while an independently chosen, random sample of 325 bolts from machine B contained 35 defective bolts. Let P1 be the proportion of the population of all bolts from machine A that are defective, and let P2 be the proportion of the population of all bolts from machine B that are defective. Find a 95% confidence interval for P1-P2 . Then complete the table below.

    1. What is the lower limit of the 95% confidence interval?

    2. What is the upper limit of the 95% confidence interval?

    © BrainMass Inc. brainmass.com June 3, 2020, 10:39 pm ad1c9bdddf
    https://brainmass.com/statistics/confidence-interval/solution-to-statistics-confidence-interval-question-242029

    Solution Summary

    A Complete, Neat and Step-by-step Solution is provided in the attached file.

    $2.19

    ADVERTISEMENT