Answered: Manufacturer A B Unacceptable 12…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Four brands of lightbulbs are being considered for use in the final assembly area of the Ford F-150 truck plant in Dearborn, Michigan. The director of purchasing asked for samples of 100 from each manufacturer. The numbers of acceptable and unacceptable bulbs from each manufacturer are shown below. At the .05 significance level, is there a difference in the quality of the bulbs? (Round your answers to 3 decimal places.)

H₀: There is no relationship between quality and manufacturer.

H₁: There is a relationship.

1. Reject H₀ if X² >____

2. X² = ____

(Reject or Do Not Reject) H₀. Ther (is a/is no) relationship between quality and manufacturer.

Manufacturer
A
B
Unacceptable 12
Acceptable
8.
5
11
88 92
95 89
Total
100 100 100 100

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