Four brands of lightbulbs are being considered for use in the final assembly area of the Ford
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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 thebulbs?
Transcribed Image Text:
Manufacturer Unacceptable Acceptable 12 92 100 95 100 89 100 Total 100
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Related Book For
Statistical Techniques in Business and Economics
ISBN: 978-0078020520
16th edition
Authors: Douglas Lind, William Marchal
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