3) Repeat question 2, except now you are interested in the median income of the zipcode. Specically, does the introduction of the online delivery option appear to have the same impact on grocery stores in areas where residents have high/low median income. Provide visualization(s) or descriptive statistics that support your answer. Also provide a rationale for why you think that may be the case. Do not just explain the visualization. Provide your logical assessment of why you think the result is the way it is. [1.5 points]