To test our hypothesis, we used the two proportions Z test because 
1. The sample size is > 30
2. The samples are independent.
After performing the Z test for proportions, we obtained a Z-statistic of -29.86 resulting in a p-value of about 0.006 < 0.05.
Thus, we can reject the null hypothesis that there is no difference between the proportion of ridership in the month of February and January. 

Conclusion

Strengths of the Z test: