A box office analyst seeks to predict opening weekend box office gross for movies. Toward this goal, the analyst plans to use online trailer views as a predictor. For each of the 66 movies, the number of online trailer views from the release of the trailer through the Saturday before a movie opens and the opening weekend box office gross (in millions of dollars) are collected and stored in the accompanying table. A linear regression was performed on these data, and the result is the linear regression equation .Yi=0.626+1.3868Xi Complete parts (a) through (d).

Online Trailer Views (millions) Opening Weekend Box Office Gross ($millions) 57.439 33.966 10.960 9.625 7.553 0.214 8.994 20.344 86.741 103.189 34.734 64.178 23.061 20.286 6.746 11.945 3.567 10.582 43.954 38.768 10.193 17.394 25.978 15.551 3.936 0.386 59.938 143.055 8.976 10.812 11.684 6.044 9.809 0.304 1.077 7.656 1.110 0.424 7.461 6.120 7.644 3.008 10.432 1.554 28.204 101.061 2.351 0.937 2.598 15.472 9.020 16.736 53.628 47.371 4.049 3.347 33.647 18.265 9.036 6.886 11.939 11.891 59.431 40.533 78.564 171.356 2.955 4.496 34.229 64.406 0.289 15.831 43.148 90.141 4.989 4.690 6.630 33.377 0.942 3.705 2.258 1.513 11.327 18.470 8.966 12.202 15.177 4.357 13.714 30.436 31.231 53.003 52.612 46.607 16.235 13.003 6.884 3.776 11.698 18.223 2.827 3.471 23.075 13.602 12.606 40.011 0.826 1.385 27.536 20.130 7.273 3.404 3.323 1.207 4.267 10.951 3.790 8.344 7.597 11.614 12.912 13.501 7.067 5.106 5.020 1.985 7.739 22.800 16.795 13.689 7.643 2.080