This is a least square estimate problem. Please help! Thanks!

4. Paul, Jane, and Ann, share information about their likes and dislikes of movies in order to make decisions about selecting films to see. They rates films they see with a scale of 0 to 10, (10 means they liked the movie very much). Here is the status of their table of ratings when Ann was interested in a new film which soon came to a 'theater near her' (titled 'Title 6' in the table) e Ann movie PaulJan Title-1 4 Title-29 Titlc-32 Titlc-47 Title-5 8 Title-6 3 4 3 Ann gencrally follows a combination of Paul and Janc's ratings. Ann wants to predict how well sho will like the movie Titlc-6, which Paul and Jane have alrcady seen. Ann rcasons as follows: she will give her similarity coefficients and for Paul and Jane respectively. If the missing rating (call it x) were known then the column of Ann's ratings should be the closest in the least-squares sense to the combination of Paul's and Jane's ratings 2 2 min min 2 2 Determie, a, B using the first 5 movie ratings, and form that the combination of Paul's and Jane's ratings that is closest to Ann's, in a least squares sense. Use this resulting best combination to infer Jane's? the induced rating for Ann for Title-6. Should Ann see Title 6 Is her taste closer to Paul's or to 4. Paul, Jane, and Ann, share information about their likes and dislikes of movies in order to make decisions about selecting films to see. They rates films they see with a scale of 0 to 10, (10 means they liked the movie very much). Here is the status of their table of ratings when Ann was interested in a new film which soon came to a 'theater near her' (titled 'Title 6' in the table) e Ann movie PaulJan Title-1 4 Title-29 Titlc-32 Titlc-47 Title-5 8 Title-6 3 4 3 Ann gencrally follows a combination of Paul and Janc's ratings. Ann wants to predict how well sho will like the movie Titlc-6, which Paul and Jane have alrcady seen. Ann rcasons as follows: she will give her similarity coefficients and for Paul and Jane respectively. If the missing rating (call it x) were known then the column of Ann's ratings should be the closest in the least-squares sense to the combination of Paul's and Jane's ratings 2 2 min min 2 2 Determie, a, B using the first 5 movie ratings, and form that the combination of Paul's and Jane's ratings that is closest to Ann's, in a least squares sense. Use this resulting best combination to infer Jane's? the induced rating for Ann for Title-6. Should Ann see Title 6 Is her taste closer to Paul's or to