Humidity of 20 groups of size 5 of raw materials to make particle boards. For the mean and range control chart.

data(ss.data.pb2)

Format

A data frame with 100 observations on the following 2 variables.

pb.group

a numeric vector

pb.humidity

a numeric vector

Source

See references.

Note

This data set is used in chapter 12 of the book ``Six Sigma with R'' (see References).

References

Cano, Emilio L., Moguerza, Javier M. and Redchuk, Andrés. 2012. Six Sigma with R. Statistical Engineering for Process Improvement, Use R!, vol. 36. Springer, New York. https://link.springer.com/book/10.1007/978-1-4614-3652-2/.

Examples

data(ss.data.pb2)
summary(ss.data.pb2)
#>     pb.group      pb.humidity   
#>  Min.   : 1.00   Min.   : 9.93  
#>  1st Qu.: 5.75   1st Qu.:11.36  
#>  Median :10.50   Median :11.95  
#>  Mean   :10.50   Mean   :12.07  
#>  3rd Qu.:15.25   3rd Qu.:12.69  
#>  Max.   :20.00   Max.   :14.37