STP 226 MODULE 4 HW - Question 1 2 out of2 poinls You are...

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Unformatted text preview: Question 1 2 out of2 poinls You are given information about a straight line. Determine whether the line slope: upward, slope: downward, or is horizontal. The equation ofthe line is}:I = -14 + 3.83:. Selected Answer: a Slopes upward CorrectAnswer: a Slopes upward QUESfiDI‘I 2 2 out of?! poinls Ohio in the linear correlation ooefficient for the data. Round your answer to three decimal plooes. A stud"...r was conducted to compare the number of hours spent in d'Ie computer lab on an assignment {3:} and the grade on [he assignment {3"}; for each ofeight randomly.r selected students in a computer class. The resulls are recorded in the table below. E 332333 1.5 31 16 4:5 1-? 51 Selectedfitnswer: a 41335 Correcthnswer‘. a 43.335 Question 3 2 out ef2 poinis Determine the regression equation for the data. Round the final values to three significant digits, if necessary. at 3 s r 15 15 y a 11 r 1.1 211 Selectedhnswer: a ;.= sewerssx Correct Answer: a 1;. = it]? + 0353:: Question 4 2 out of2 poinls Use the regression equation to predict the y-Halue corrflponding to the given 1o value. Rou ncl your answer to the nearest tenth. The regression equation relaljng attitude rating‘ix} and job performance raljng {3r} for ten randomly.r selected em ployees ofa corn pany is 'r— IL? 4 1.021: . Predict the job performance raijng for an employee whose attitude rating is 5?. Selected Answer: a Elli] CorrectAnswer‘. a Bill] Question 5 2 out on poinls Compute the coefficient of determination. Round your answer to four decimal places. F1 regression equaljon is obtained for a set of data poims. It is found that the total sum of so uares is 1 1?.0, the regression sum of so uares is 81.51 and the error sum of squares is 35.5. Selectedhnswer: a 0.6955 CorrectAnswer: a 0.6955 ...
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