##
##
## Cell Contents
## |-------------------------|
## | N |
## | Chi-square contribution |
## | N / Row Total |
## | N / Col Total |
## | N / Table Total |
## |-------------------------|
##
##
## Total Observations in Table: 14999
##
##
## | hr$left
## hr$Department | 0 | 1 | Row Total |
## --------------|-----------|-----------|-----------|
## accounting | 563 | 204 | 767 |
## | 0.783 | 2.506 | |
## | 0.734 | 0.266 | 0.051 |
## | 0.049 | 0.057 | |
## | 0.038 | 0.014 | |
## --------------|-----------|-----------|-----------|
## hr | 524 | 215 | 739 |
## | 2.709 | 8.670 | |
## | 0.709 | 0.291 | 0.049 |
## | 0.046 | 0.060 | |
## | 0.035 | 0.014 | |
## --------------|-----------|-----------|-----------|
## IT | 954 | 273 | 1227 |
## | 0.391 | 1.252 | |
## | 0.778 | 0.222 | 0.082 |
## | 0.083 | 0.076 | |
## | 0.064 | 0.018 | |
## --------------|-----------|-----------|-----------|
## management | 539 | 91 | 630 |
## | 7.250 | 23.202 | |
## | 0.856 | 0.144 | 0.042 |
## | 0.047 | 0.025 | |
## | 0.036 | 0.006 | |
## --------------|-----------|-----------|-----------|
## marketing | 655 | 203 | 858 |
## | 0.002 | 0.008 | |
## | 0.763 | 0.237 | 0.057 |
## | 0.057 | 0.057 | |
## | 0.044 | 0.014 | |
## --------------|-----------|-----------|-----------|
## product_mng | 704 | 198 | 902 |
## | 0.408 | 1.307 | |
## | 0.780 | 0.220 | 0.060 |
## | 0.062 | 0.055 | |
## | 0.047 | 0.013 | |
## --------------|-----------|-----------|-----------|
## RandD | 666 | 121 | 787 |
## | 7.346 | 23.510 | |
## | 0.846 | 0.154 | 0.052 |
## | 0.058 | 0.034 | |
## | 0.044 | 0.008 | |
## --------------|-----------|-----------|-----------|
## sales | 3126 | 1014 | 4140 |
## | 0.255 | 0.815 | |
## | 0.755 | 0.245 | 0.276 |
## | 0.274 | 0.284 | |
## | 0.208 | 0.068 | |
## --------------|-----------|-----------|-----------|
## support | 1674 | 555 | 2229 |
## | 0.348 | 1.114 | |
## | 0.751 | 0.249 | 0.149 |
## | 0.146 | 0.155 | |
## | 0.112 | 0.037 | |
## --------------|-----------|-----------|-----------|
## technical | 2023 | 697 | 2720 |
## | 1.178 | 3.771 | |
## | 0.744 | 0.256 | 0.181 |
## | 0.177 | 0.195 | |
## | 0.135 | 0.046 | |
## --------------|-----------|-----------|-----------|
## Column Total | 11428 | 3571 | 14999 |
## | 0.762 | 0.238 | |
## --------------|-----------|-----------|-----------|
##
##
## Statistics for All Table Factors
##
##
## Pearson's Chi-squared test
## ------------------------------------------------------------
## Chi^2 = 86.82547 d.f. = 9 p = 7.04213e-15
##
##
## There is a dependency between leaving and the department
People leave more or less depending on the department they work in It seems like Management and RandD have much less attrition than the others
##
##
## Cell Contents
## |-------------------------|
## | N |
## | Chi-square contribution |
## | N / Row Total |
## | N / Col Total |
## | N / Table Total |
## |-------------------------|
##
##
## Total Observations in Table: 14999
##
##
## | hr$left
## hr$salary | 0 | 1 | Row Total |
## -------------|-----------|-----------|-----------|
## high | 1155 | 82 | 1237 |
## | 47.915 | 153.339 | |
## | 0.934 | 0.066 | 0.082 |
## | 0.101 | 0.023 | |
## | 0.077 | 0.005 | |
## -------------|-----------|-----------|-----------|
## low | 5144 | 2172 | 7316 |
## | 33.200 | 106.247 | |
## | 0.703 | 0.297 | 0.488 |
## | 0.450 | 0.608 | |
## | 0.343 | 0.145 | |
## -------------|-----------|-----------|-----------|
## medium | 5129 | 1317 | 6446 |
## | 9.648 | 30.876 | |
## | 0.796 | 0.204 | 0.430 |
## | 0.449 | 0.369 | |
## | 0.342 | 0.088 | |
## -------------|-----------|-----------|-----------|
## Column Total | 11428 | 3571 | 14999 |
## | 0.762 | 0.238 | |
## -------------|-----------|-----------|-----------|
##
##
## Statistics for All Table Factors
##
##
## Pearson's Chi-squared test
## ------------------------------------------------------------
## Chi^2 = 381.225 d.f. = 2 p = 1.652087e-83
##
##
## The p-value is < 0.05, indicating a significant dependency between salary level and attrition.
Employees with lower salaries are significantly more likely to leave the company than those with high salaries. High-salary employees show the most loyalty/retention.
##
##
## Cell Contents
## |-------------------------|
## | N |
## | Chi-square contribution |
## | N / Row Total |
## | N / Col Total |
## | N / Table Total |
## |-------------------------|
##
##
## Total Observations in Table: 14999
##
##
## | hr$left
## hr$Work_accident | 0 | 1 | Row Total |
## -----------------|-----------|-----------|-----------|
## 0 | 9428 | 3402 | 12830 |
## | 12.346 | 39.510 | |
## | 0.735 | 0.265 | 0.855 |
## | 0.825 | 0.953 | |
## | 0.629 | 0.227 | |
## -----------------|-----------|-----------|-----------|
## 1 | 2000 | 169 | 2169 |
## | 73.029 | 233.709 | |
## | 0.922 | 0.078 | 0.145 |
## | 0.175 | 0.047 | |
## | 0.133 | 0.011 | |
## -----------------|-----------|-----------|-----------|
## Column Total | 11428 | 3571 | 14999 |
## | 0.762 | 0.238 | |
## -----------------|-----------|-----------|-----------|
##
##
## Statistics for All Table Factors
##
##
## Pearson's Chi-squared test
## ------------------------------------------------------------
## Chi^2 = 358.5938 d.f. = 1 p = 5.698673e-80
##
## Pearson's Chi-squared test with Yates' continuity correction
## ------------------------------------------------------------
## Chi^2 = 357.5624 d.f. = 1 p = 9.55824e-80
##
## The p-value is very small (p < 0.05), so work accidents and leaving are dependent. #### Non-Technical: Surprisingly, employees who had a work accident were actually less likely to leave the company. Those without accidents (0) have a higher attrition rate than those who had one (1)
##
##
## Cell Contents
## |-------------------------|
## | N |
## | Chi-square contribution |
## | N / Row Total |
## | N / Col Total |
## | N / Table Total |
## |-------------------------|
##
##
## Total Observations in Table: 14999
##
##
## | hr$left
## hr$promotion_last_5years | 0 | 1 | Row Total |
## -------------------------|-----------|-----------|-----------|
## 0 | 11128 | 3552 | 14680 |
## | 0.290 | 0.928 | |
## | 0.758 | 0.242 | 0.979 |
## | 0.974 | 0.995 | |
## | 0.742 | 0.237 | |
## -------------------------|-----------|-----------|-----------|
## 1 | 300 | 19 | 319 |
## | 13.343 | 42.702 | |
## | 0.940 | 0.060 | 0.021 |
## | 0.026 | 0.005 | |
## | 0.020 | 0.001 | |
## -------------------------|-----------|-----------|-----------|
## Column Total | 11428 | 3571 | 14999 |
## | 0.762 | 0.238 | |
## -------------------------|-----------|-----------|-----------|
##
##
## Statistics for All Table Factors
##
##
## Pearson's Chi-squared test
## ------------------------------------------------------------
## Chi^2 = 57.26273 d.f. = 1 p = 3.813123e-14
##
## Pearson's Chi-squared test with Yates' continuity correction
## ------------------------------------------------------------
## Chi^2 = 56.26163 d.f. = 1 p = 6.344155e-14
##
## The p-value is < 0.05, showing a statistical dependency between promotions and attrition. #### Non-Technical: Employees who were not promoted in the last five years left at a much higher rate. A lack of career progression is a major driver for people leaving their jobs.