the table below displays the performance of 10 randomly selected students on the sat verbal and sat math tests taken last year. student 1 2 3 4 5 6 7 math 475 512 492 465 523 560 8 9 10 610 verbal 500 540 512 530 533 603 477 501 420 691 512 489 458 a. calculate the least-squares regression line for this data. report r and r-squared. b. compute the 90% confidence interval. interpret this confidence interval by describing for me in words what it means in the context of this problem. c. is there a significant linear relationship between the variables? state the hypotheses, t-statistic, p-value, and conclusion.