3. Six percent of the computer chips produced by Cheapo Chips are defective. Each month a random sample of 200 chips manufactured in that month is selected. Let X= the number of defective chips in the sample. (a) Calculate the mean and standard deviation of X. Mx= np%3D(200(0.00) =12
3. Six percent of the computer chips produced by Cheapo Chips are defective. Each month a random sample of 200 chips manufactured in that month is selected. Let X= the number of defective chips in the sample. (a) Calculate the mean and standard deviation of X. Mx= np%3D(200(0.00) =12
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 4CYU
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Part C. To reduce the percentage of defective chips the company...
![3. Six percent of the computer chips produced by Cheapo Chips are defective. Each month a random sample
of 200 chips manufactured in that month is selected. Let X= the number of defective chips in the sample.
(a) Calculate the mean and standard deviation of X.
Mx
1(200)(0.0)-2]
%3D
%3D
%3D
ニ
3(d-1)du
(b) Find the probability that 8 or fewer chips in a sample of 200 are defective.
p(xg8)%3D(200,0.06,8)=0.1470
(c) To reduce the percentage of defective chips, the company contracts with a new supplier for some
important components. In the next month, the sample of 200 chips has only 8 defective ones. Can the
company conclude that the new components have reduced the rate of defective chips produced?
Explain.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbe8cbde8-d834-4da7-bddd-520d92e8e74f%2Fd9722ff4-fd10-4ef6-9035-556753f72ce7%2Fgphl905.jpeg&w=3840&q=75)
Transcribed Image Text:3. Six percent of the computer chips produced by Cheapo Chips are defective. Each month a random sample
of 200 chips manufactured in that month is selected. Let X= the number of defective chips in the sample.
(a) Calculate the mean and standard deviation of X.
Mx
1(200)(0.0)-2]
%3D
%3D
%3D
ニ
3(d-1)du
(b) Find the probability that 8 or fewer chips in a sample of 200 are defective.
p(xg8)%3D(200,0.06,8)=0.1470
(c) To reduce the percentage of defective chips, the company contracts with a new supplier for some
important components. In the next month, the sample of 200 chips has only 8 defective ones. Can the
company conclude that the new components have reduced the rate of defective chips produced?
Explain.
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