1. Average Monthly Hours vs Last Evaluation

Correlation

## 
##  Pearson's product-moment correlation
## 
## data:  hr$average_montly_hours and hr$last_evaluation
## t = 44.237, df = 14997, p-value < 2.2e-16
## alternative hypothesis: true correlation is not equal to 0
## 95 percent confidence interval:
##  0.3255078 0.3538218
## sample estimates:
##       cor 
## 0.3397418

Technical Interpretation

The p-value is very small and less than alpha (0.1), therefore we reject the null hypothesis and conclude that there is a small and positive correlation between average monthly hours and last evaluation.

Non- Technical Interpretation

As average monthly hours increase, last evaluation increases, slightly

The Graph

2. Last Evaluation vs. Satisfation Level

Correlation

## 
##  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 
## 0.1050212

Technical Interpretation

The p-value is very small and less than alpha (0.1), therefore we reject the null hypothesis and conclude that there is a small and positive correlation between satisfaction level and last evaluation.

Non- Technical Interpretation

As Employee satisfaction increases, last evaluation increases, slightly

The Graph

3. Time Spent With The Company vs. Satisfaction Level

Correlation

## 
##  Pearson's product-moment correlation
## 
## data:  hr$time_spend_company and hr$satisfaction_level
## 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 
## -0.1008661

Technical Interpretation

The p-value is very small and less than alpha (0.1), therefore we reject the null hypothesis and conclude that there is a small and negative correlation between time spent at the company and satisfaction level.

Non- Technical Interpretation

As time spent with the company increases, satisfaction level decreases, slightly

The Graph

4. Time Spent With The Company vs. Average Monthly Hours

Correlation

## 
##  Pearson's product-moment correlation
## 
## data:  hr$time_spend_company and hr$average_montly_hours
## t = 15.774, df = 14997, p-value < 2.2e-16
## alternative hypothesis: true correlation is not equal to 0
## 95 percent confidence interval:
##  0.1119801 0.1434654
## sample estimates:
##       cor 
## 0.1277549

Technical Interpretation

The p-value is very small and less than alpha (0.1), therefore we reject the null hypothesis and conclude that there is a small and positive correlation between time spent at the company and average monthly hours worked.

Non- Technical Interpretation

As time spent with the company increases, average monthly hours increses, slightly

The Graph