Please explain

To study how social media may influence the products consumers buy, researchers collected the opening weekend box ofce revenue (in millions of dollars) for 23 recent movies and the social media message rate (average number of messages referring to the movie per hour). The data are available below. Conduct a complete simple linear regression analysis of the relationship between revenue (y) and message rate (x). a Click the icon to view the data. The least squares regression equation is = 7.220 + ( 0.075 )x. (Round to three decimal places as needed.) Check the usefulness of the hypothesized model. What are the hypotheses to test? A. H0: [31 #5 0 against Ha: [i1 = 0 B. H0: [50 = 0 against Ha: [50 at 0 st. H0: [31 =0 against Ha: [i1 #0 D. H0: [50 0 against Ha: [so = 0 \f