## # A tibble: 2 × 2
## no_fire_flag officer_max_salary
## <chr> <dbl>
## 1 No Firings in 2013 54372.
## 2 Yes Firings in 2013 56521.
## # A tibble: 4 × 3
## # Groups: no_fire_flag [2]
## no_fire_flag collective_bargaining n
## <chr> <chr> <int>
## 1 No Firings in 2013 no 163
## 2 No Firings in 2013 yes 1311
## 3 Yes Firings in 2013 no 87
## 4 Yes Firings in 2013 yes 400
## # A tibble: 2 × 2
## no_fire_flag mean_pct_change_police_salaries
## <chr> <dbl>
## 1 No Firings in 2013 0.196
## 2 Yes Firings in 2013 0.204
Unfortunately, none of the 51 city departments with no overtime allowed in 2013 matched a city with non-NA percent change in police salaries in the Census dataset.