Question

Standardized test scores are often used as part of an application to college. Test scores in math and verbal we between 200 and 800 but have no units Complete parts a through below a) Verbal and math test scores of a high school graduating class are displayed in the waterpiot, with the regression line added to the phone come ever below O A. The association between math scores and verbal scores is moderately linear and positive. Students with high math scores typically have low verbal scores OB. The association between math scores and verbal scores is strongly linear and negative Students with High verbal scores typically have lighth scores OC. The association between math scores and verbal scores is moderately linear and positive. Students with high verbal scores typically have high math scores b) Are there any students whose scores do not seem to fit the overall pattem? O A. Yes, one student got a verbal score of 800 and a math score of 800. OB. Yes, one student got a verbal score of 250 and a math score of 800 OC. Yes, one student got a verbal score of 413 and a math score of 488 OD. No, there are no students whose scores do not seem to the overall pattern c) For these data 0.589. Interpret this statistic Choose the correct answer below O A. Students who score one standard deviation above the mean in verbal are expected to score 0589 standard deviations above the men in the 34.7% of the way in the scores explained by score OB. Students who score one standard deviation above the mean in verbal are expected to score 09 standard deviations above the meanin, 89% of the variability in the led by score OC. Students who score one standard deviation above the mean in verbal are expected to score 0.509 standard deviations blow the mean the 58.9% of the variably in math scores explained by wbity in verbal score OD. Students who score one standard deviation above the mean in verbal are expected to score 589 standard deviations below the meaninho 47% of the variability in math score beplained by variability in ve

Answer 1

option: () The association between math scores and verbal scores moderately linear positive. students with high verbal scores typically have high math Scores b) option:B) Yes, one student got a verbal score of score 25s and and amath c) Option: A) is correct. =524.7, T: 522.7 Sxs 188 Sy = 159.1 =0.589 b=0 = 0.589x 159.1 188 -0.498 arī -bx - 522.7 - 524.7 (0.498) = 261.39 Ń = a +bX =) V = 261-39+0.498x e) option: B) for each additional Point in verbal, the model Predicts an increase of bi Points in math Score. X = 726 Û = 261.39 +0,498 (726) -628.938 Xe Silva | - y - 3 -800-622.938 e=177.062