Binomial Process Data for p-Charts

25 subgroups with sample sizes (ni), number of nonconforming units (Di), and proportion nonconforming (pi). This data set is used for \(p\)-chart examples.

Format

A data frame with 25 observations on the following 4 variables.

i

Index.

ni

The sample Size.

Di

Number of non-conforming units per sample.

pi

Proportion of non-conforming units per sample.

Source

Montgomery, D. C. (2009). Introduction to Statistical Quality Control, 6th ed. Wiley.

Examples

data(binomdata)