How are income and degree related? The American National Election Survey asked respondents who reported at least 13 years of education to identify the highest degree completed (DEGREE:0=No Degree earned, 1=Bachelor's degree, 2=Master's degree, 3=Ph.D., etc.,4=LLB, 5=MD, DDS, etc.,6=JDC,STD,THD, 7=Associate's degree.

Is there enough statistical evidence to conclude that there are differences in income (INCOME) between people with different completed degrees?Use a 5% significance level.

The data of this question is on this link

https://docs.google.com/spreadsheets/d/1_i1q6B8FWHgIYVR8SnHDx1EVZZdmlQ3yDVa4fI-E1M0/edit?usp=sharing