Difference in quality of lightbulbs

Reference no: EM13107920

Four brands of lightbulbs are being considered for use in the final assembly area of the Saturn plant in Spring Hill, Tennessee. 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?

Manufacturer

Unacceptable

Acceptable

Total

100

Reference no: EM13107920

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