6) The following is the number of new Covid-19 cases per day in April in the US. (Source: Center for Disease Control, CDC) US Daily Covid New Cases and Deaths for April y=0.012x -77,522 R? = 0.5356 1000 (not in chronological order) 800 600 Deaths 400 200 90000 80000 30000 40000 50000 60000 70000 New Cases a) Interpret slope (Hint: Use 1000 new cases as one unit increase of x and multiply slope by 1000 to get a more real world number) b) Find the correlation coefficient, r and interpret c) Find the coefficient of determination, r, and interpret d) Find a 95% prediction interval for life expectancy if x = 60000 and E = 276, and interpret