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ID: 3324404 • Letter: #
Question
/fu blackboard.com/webapps/assessment/take/takejsp?course assessment id- 441844 18&course; id- 113557 1content id Y final grade (out of 100) xl-number of lectures skipped x2-number of late assignments x3=midterm test grade (out of 100) essor recorded data for 50 randomly selected students. The partial regression output is shown below. Predictor Coef 4.99 3.61 1.73 1.35 Standard Error 19.95 1.68 2.3 0.68 Constant x2 x3 Analysis of Variance Source Regression Error DF MS 3716 1238.667 46 8688 188.870 49 12404 The value of the t statistic to test if number of late assignments is a significant predictor of final grade is (use 3 decimals)Explanation / Answer
Test statistic. The test statistic is a t statistic (t) defined by the following equation.
t = b1 / SE
where b1 is the slope of the sample regression line, and SE is the standard error of the slope.
b1 for x2 = - 1.73 and SE = 2.3
t = - 1.73/2.3
t = - 0.752
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