Aprofessor obtains sat scores and freshman grade point average (gpas) for a group of n = 15 college students. the sat scores have a mean of m = 580 with ss = 22,400, and the gpas have a mean of 3.10 with ss = 1.26, and sp = 84.

a. find the regression equation for predicting gpa from sat scores.

b. what percentage of the variance in gpas is accounted for by the regression equation? (compute the correlation, r, then find r to 2nd power.)

c. does the regression equation account for a significant portion of the variance in gpa? use a = .05 to evaluate the f – ratio.

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step-by-step explanation:

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation:

in geometry, parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel. by extension, a line and a plane, or two planes, in three-dimensional euclidean space that do not share a point are said to be parallel.

in english this is

ex.15 pag.85 create. write in ten lines the continuation of the ballad of the five motanasi, using verbs to the imperfect and to the perfect compound. five stars

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