The Road King Tire Company in Birmingham wants to monitor the quality of the tires it manufactures. Each day the company quality-control manager takes a sample of 100 tires, tests them, and determines the number of defective tires. The results of 20 samples have been recorded as follows:

Construct a p-chart for this process using 2( limits and describe the variation in theprocess.

Transcribed Image Text:

Number of Defectives 14 12 Number of Defectives 18 Sample Sample 12 10 18 14 16 18 19 20