I am working on a data where there are 65000 observations. this is a transport delay data for various cities. So i need to find if there is a relation between the cities and the delay in days. T-test and ANOVA cannot be conducted as day is a numeric value and city is a categorical value.
Also would it be advisable if i aggrgate the data i.e. total of delay in days for a particular city and then run some descriptive analysis.
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ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.