pcmanufact: Personal computer manufacturer data

In luca-scr/qcc: Quality Control Charts

Personal computer manufacturer data

Description

A personal computer manufacturer counts the number of nonconformities per unit on the final assembly line. He collects data on 20 samples of 5 computers each.

Usage

data(pcmanufact)

Format

A data frame with 10 observations on the following 2 variables.

x

number of nonconformities (inspection units)

size

number of computers inspected

References

Montgomery, D.C. (1991) Introduction to Statistical Quality Control, 2nd ed, New York, John Wiley & Sons, pp. 181–182

Examples

data(pcmanufact)
describe(pcmanufact)
pcmanufact <- transform(pcmanufact, sample = seq(nrow(pcmanufact)))
plot(x/size ~ sample, data = pcmanufact, type="b")

luca-scr/qcc documentation built on Feb. 25, 2023, 3:33 p.m.