Question

n Correlation Cox R Variance calcul x 10.1 Homewox Connect Mary * M "Range-brer X M Inbox trinige X Meet - y X ecc.instructure.com/courses/20438/assignments/257885 k Plus es 10.1 Homework Score: 1/6 1/6 answered bus Done ules Question 4 > 0/1 pt 100 gnments Based on the data shown below, calculate the regression line (each value to two decimal places) cussions X + Es dent Support 1 Eoring Services ansfer Services utoring X у 11.34 2 13.48 3 19.62 4 20.86 5 24.6 6 26.24 7 29.58 32.32 9 32.56 10 35.8 11 36.24 12 40.38 134212 Question Help: D Video Submit Question 5 8 9 T u K v B. N M

Answer 1

10:- regression line tegression de have to calculate the for given data. tet, ŷ = B, X + Bo be the estimated line. Now, BE Erai) (yi-y) 다. s(min) ² and Bo = 7 - B The given data is 71 y y 1.34 6 이 11 12 36.29 - 0 2 3 y 26.24 29.58 32.32 32.56 35.8 40.38 42.12 8 13.48 19.62 20. 86 24,6 4 9 10 5

No y = 28.09 & caro) (ying) Bi= 21 T Mi-1) cp-4) 1452.48 and E (XF-57) 182 B 21 452.48 182 В, = 2.49 Во y - Bă = 28.09 - 9.49 *7 10.68 Bo = 10.681 Hence, the required regression given data IS lone for the 2:49 * x + 10.68

Y 6 8 2 5 MM 4 7 6 We hav to plot the above 1 points Scale on X-Ox's Icm lunit on Y-axt icma tunit 9 X 8 다 6 5 4 * 7 2 a 2 4 5 6 7 8 0 ca o Coo This scatter plot indicales That data points gre strongly negatively correlated orth each other Hence comela Hon -0.92

do c o Po Correlation T's 0.82 por this plot This is strongly positively correlated Hence correlation 0.93 IIN OOOOO c o d 0 e 0 o o This plot has very weak orrelation Henoc Correlation 0.05