##
## Pearson's product-moment correlation
##
## data: hr$satisfaction_level and hr$time_spend_company
## t = -12.416, df = 14997, p-value < 2.2e-16
## alternative hypothesis: true correlation is not equal to 0
## 95 percent confidence interval:
## -0.11668153 -0.08499948
## sample estimates:
## cor
## -0.1008661the p-value is smaller than my alpha (0.01) therefore we reject the null hypothesis We conclude that there is a correlation between satisfaction level and time spent in the company There is a weak negative correlation between satisfaction level and time spent in the company
##
## Pearson's product-moment correlation
##
## data: hr$time_spend_company and hr$number_project
## t = 24.579, df = 14997, p-value < 2.2e-16
## alternative hypothesis: true correlation is not equal to 0
## 95 percent confidence interval:
## 0.1813532 0.2121217
## sample estimates:
## cor
## 0.1967859The p-value is smaller than my alpha (0.01) therefore we reject the Ho and conclude that there is a weak and positive correlation between time and projects
As time spent at the company goes up, the number of projects goes up slightly
##
## Pearson's product-moment correlation
##
## data: hr$satisfaction_level and hr$last_evaluation
## t = 12.933, df = 14997, p-value < 2.2e-16
## alternative hypothesis: true correlation is not equal to 0
## 95 percent confidence interval:
## 0.08916727 0.12082195
## sample estimates:
## cor
## 0.1050212The p-value is smaller than my alpha (0.01) therefore we reject the Ho and conclude that there is a weak and positive correlation between time and projects
As satisfaction level goes up, the last evaluation score goes up slightly
##
## Pearson's product-moment correlation
##
## data: hr$average_montly_hours and hr$satisfaction_level
## t = -2.4556, df = 14997, p-value = 0.01408
## alternative hypothesis: true correlation is not equal to 0
## 95 percent confidence interval:
## -0.036040356 -0.004045605
## sample estimates:
## cor
## -0.02004811The p-value is bigger than my alpha (0.01) therefore we cannot reject the Ho and conclude that there is no correlation between average monthly hours and satisfaction level
As Average monthly hours goes down, satisfaction level remains the same