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1o limits in which about 68.27% observations tall. Example 8. 10 samples of different sizes were taken and the number of defectives in each sample are noted below: 1 2 3 4 5 6 7 8 9 10 Sample No. Sample size No. of defects 100 6 300 200 150 200 250 300 150 100 250 12 5 5 20 5 10 6 4 25 Draw a control chart for fraction defective taking 30 control limits. 1o limits in which about 68.27% observations tall. Example 8. 10 samples of different sizes were taken and the number of defectives in each sample are noted below: 1 2 3 4 5 6 7 8 9 10 Sample No. Sample size No. of defects 100 6 300 200 150 200 250 300 150 100 250 12 5 5 20 5 10 6 4 25 Draw a control chart for fraction defective taking 30 control limits