Posted by DeeDee on Wednesday, May 29, 2013 at 10:52pm.
Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y.
x 7 7 5 5 7
y 95 90 75 85 95
(a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy).
Incorrect: Your answer is incorrect. . (SS(x)) (my answer was 100.9)
Incorrect: Your answer is incorrect. . (SS(y)) (my answer was 720)
Incorrect: Your answer is incorrect. . (SS(xy)) (My answer was 1396)
I have got several answers and none of them have been correct.
(b) Find r. (Give your answer correct to three decimal places.) (my answer was 7.04) and it was wrong, could some one work this out so I can see how I missed it.
Incorrect: Your answer is incorrect. .

Math  Sarra, Thursday, May 30, 2013 at 3:09pm
What happen if you got a D on your finials but you have good grade in that class can you still pass

Math  DeeDee, Thursday, May 30, 2013 at 4:11pm
This does not explain how to come up with the right answer for me. I have worked it out several times and come up with the same answers, which I posted above. Can someone work this out so I can see what I have done wrong and can learn from my mistakes...

Math  Anonymous, Thursday, October 1, 2015 at 10:31pm
shame
Answer This Question
Related Questions
 Statistics  Does studying for an exam pay off? The number of hours studied, x, ...
 statistics  Does studying for an exam pay off? The number of hours studied, x, ...
 Math  Does studying for an exam pay off? The number of hours studied, x, is ...
 Math PLEASE help  Does studying for an exam pay off? The number of hours ...
 eced  A correlatibas .82 was found betweenen number of hours studied and final ...
 Statistics  The accompanying data show the number of hours, x, studied for an ...
 statistics  Can someone work this out for me, so I can use as an example to do ...
 Math  Jeremy uses the linear function G=12h+50 to represent the grade, G (in ...
 msth  Professor White asked his students to put the number of hours each ...
 Statistics 1  Professor White asked his students to put the number of hours ...
More Related Questions