7) The data below records the price (in thousands of $) of a sample of houses sold in a city. These data were obtained from an internet real estate site. size(sq. ft) x 480 1916 1656 1796 951 2179 1083 796 1325 1402 1691 price ($1000) y 259 875 635 480 745 767 245 335 470 405 420 a) Find the equation of linear regression line. (Round to 3 decimal places) 4 b) Check scatter plot for non-linear pattern. Find p-value of linear regression test. Use a significant level of 0.05 to determine if there is evidence of linear correlation