3. A certain change in a process for manufacture of component parts is being considered. Samples are taken using both the existing and the new procedure so as to determine if the new process results in an improvement. If 75 of 1500 items from the existing procedure were found to be defective and 80 of 2000 items from the new procedute were found to be defective, a. What is the value of the point estimate? b. Find a 906 confidence interval for the true difference in the fraction of defectives between the existing and the new process.
3. A certain change in a process for manufacture of component parts is being considered. Samples are taken using both the existing and the new procedure so as to determine if the new process results in an improvement. If 75 of 1500 items from the existing procedure were found to be defective and 80 of 2000 items from the new procedute were found to be defective, a. What is the value of the point estimate? b. Find a 906 confidence interval for the true difference in the fraction of defectives between the existing and the new process.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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Answer 3) a, b, c
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