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Spark Foundation Inc is a well renounded company. They have over 5000 employees all across the globe. Out of which we managed to accumlate data for 174 people (samle) on a random basis. We have data showing us their name, age, gender, nationality, ethenicity, tenure, department, department, position and annual salary.
We are going to test if there is a significant difference in their salaries, based on gender. We will use hypothesis test for mean salaries to check for gender discrimination. We will further analyze is there a race or age discrimination as well.
All of the condition satisfies should satisfy to perform Student's T Test :
- Unknown Variance, since sample data and assumed to be equal
- dependant samples
Process :
- Calucate n (sample size) for both dataset.
- Standard Deviation
- Pooled Variance
- Standard Error
- Degree of freedom
- T Statistic Value
- Calculate P Value
Assess the p value to declare the reault.