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Quality control data set for quadcopter drone blades, where this data has been made up for an example.

Usage

drone_blades

Format

A data frame with 2000 observations on the following 2 variables.

supplier

The supplier for the blade.

inspection

The inspection conclusion.

References

OpenIntro Statistics, Third Edition and Fourth Edition.

Examples


library(dplyr)

drone_blades %>%
  count(supplier, inspection)
#> # A tibble: 4 × 3
#>   supplier             inspection     n
#>   <fct>                <fct>      <int>
#> 1 current_supplier     fail         101
#> 2 current_supplier     pass         899
#> 3 prospective_supplier fail          42
#> 4 prospective_supplier pass         958