(1 point) In a certain jurisdiction, all students in Grade Three are required to take a standardized test to evaluate their math comprehension skills. Educators believe that such standardized testing is not helpful, as a student's ability can be affected by various socio-economic factors. The Download .csv file which is = "","perbelowpoverty","mathscore""1",61.93,160.32"2",56.64,167.39"3",56.88,167.39"4",62.72,177.65"5",64.61,161.37"6",54.51,175.94"7",55.85,174.87"8",67.22,157.48"9",70.45,158.78"10",52.15,164.95"11",61.93,164.9"12",64.38,164.36"13",57.91,169.14"14",66.59,156.25"15",61.93,162.87"16",70.06,160.02"17",58.46,167.82"18",60.43,176.79"19",55.38,165.99"20",71.87,148.22"21",47.02,191.72"22",60.35,167.28"23",65.4,156.17"24",46.7,202.81"25",55.93,174.34"26",59.33,159.72"27",55.46,186.49"28",59.09,179.7"29",55.22,176.37"30",62.01,163.49"31",63.75,169.29"32",64.46,163.3"33",50.88,187.22"34",56.01,187.02 contains these data resulting from a random sample of ?=34 schools within this jurisdiction. From these data you wish to estimate the model ??=?0+?1??+?? . Where ?? is the proportion of Grade Three students in School ? who live below the poverty line and ?? is the average mathematics comprehension score for all Grade Three students in the same school, School ? . The observed ?-data is found in column 2, the observed ?-data is in column 3.

(e) At School B, the proportion of Grade Three students living below the poverty line is 33%. What can you say about the average mathematics comprehension score of School B's Grade Three students compared to School A's Grade Three students? Complete the statement below. The mathematics comprehension scores of all Grade Three students at School B will be ? than the mathematics comprehension scores of all Grade Three students at School A by ? of (f) Complete the statement below about the coefficent of determination. % of the ? in the ? -variable can be explained by its ? with the ? -variable. (g) Complete this sentence concerning homoscedasticity (consistant variance) that should prevail. An important condition is that ? of the ? -variable is ? regardless of the value of the ? # -variable