Randd {BSDA} | R Documentation |

## Research and development expenditures and sales of a large company

### Description

Data for Exercise 9.36 and Example 9.8

### Usage

Randd

### Format

A data frame/tibble with 12 observations on two variables

- rd
research and development expenditures (in million dollars)

- sales
sales (in million dollars)

### References

Kitchens, L. J. (2003) *Basic Statistics and Data Analysis*.
Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

### Examples

plot(sales ~ rd, data = Randd)
model <- lm(sales ~ rd, data = Randd)
abline(model, col = "purple")
summary(model)
plot(model, which = 1)
rm(model)

[Package

*BSDA* version 1.2.0

Index]