repair1: Service times of small computers

Description Format Source Examples

Description

A company markets and repairs small computers and wants to forecast the number of service engineers it will require over the next few years. One element of the forecasting procedure is an analysis of the length of service calls. The length of a call depends on the number of electronic components in the computer that must be repaired or replaced. To establish the relationship a sample of service records was taken: a subset of the data in repair2 by excluding repair times for computers with the 10 largest numbers of components.

Format

This data frame contains the following columns:

units

number of components repaired or replaced

minutes

service time of a call in minutes

Source

S. Chatterjee and B. Price (1991). Regression Analysis by Example, p11. New York: Wiley.

Examples

1

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