Complete the foiiowfng worksheet and then use it to cafcuiate the coe'icient of determination. 2' m.- :4 a (:2. , 712 (y, , m2 (y.- , gr 1 12 265.2 253.1 2,280.4 146.4 1,271.2 2 20.2 279.6 286.2 214.7 43.6 451.7 3 27 311.2 313.7 165.0 6.3 107.1 4 30 328.0 325.8 622.3 4.8 736.9 5 30 352.0 325.8 622.3 686.4 2,616.0 6 21.4 281.2 291.1 95.1 98.0 386.3 7 21.6 288.4 291.9 80.2 12.3 155.1 8 25.2 292.8 306.4 30.8 185.0 64.9 9 37.2 360.0 354.9 2,921.0 26.0 3,498.3 10 14.4 263.2 262.8 1,448.1 0.2 1,417.8 11 15 272.4 265.2 1,271.2 51.8 809.6 12 22.4 291.2 295.1 33.1 15.2 93.2 13 23.9 299.6 301.2 0.1 2.6 1.6 14 26.6 307.6 312.1 126.5 20.3 45.5 15 30.7 320.4 328.6 769.9 67.2 382.1 Total '7 The coefficient of determination (7'?) is The F- ratio is V , which means that the assessor V reject, at the 5% level of significance, the null hypothesis that there is no relationship between the selling price and the area of the house. (Hint: The critical value of FD_05,1,13 is 4.67.) Which of the following is an approximate 95% prediction interval for the selling price of a house having an area (size) of 15 (hundred) square feet? O 177.7to 211.7 O 244.7 to 285.7 O 174.2 to 215.2