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Unformatted text preview: Multiple choice set 4 INFO: practice multiple choice questions related to chapters 8, 12; and assignment 6. The first part consists of 9 multiple choice questions, in the second part you have to answer TRUE or FALSE . Q 1. Biologists studied the relationship between egg mass weight ( X ) and heart rate ( Y ) for 20 species of birds. The MINITAB output is as follows: The regression equation is heart = 348.4 - 3.745 egg mass S = 32.6334 R-Sq = 64.6% R-Sq(adj) = 62.6% Predictor Coef SE Coef T P Constant 348.413 9.771 35.66 0.000 egg mass-3.7445 0.6538-5.73 0.000 Analysis of Variance Source DF SS MS F P Regression 1 34932.3 34932.3 32.80 0.000 Error 18 19168.9 1064.9 Total 19 54101.2 The point estimate for the standard deviation σ of the random errors is (a) 30.95 (b) 32.63 (c) 64.6 (d) 2.13 (e) none of the preceding Q 2. Refer to Q1. Use the equation line to predict the value of the heart rate if the egg mass is 35. (a) 217.36 (b) 116.67 (c) 35 (d) 130.54 (e) none of the preceding Q 3. Refer to Q1. The estimated standard error of the intercept is (a) 9.771 (b) 0.6538 (c) 3.745 (d) 2.32 (e) none of the preceding...
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- Spring '09
- Regression Analysis, Errors and residuals in statistics, Bone fracture, Coronary artery bypass surgery, Hip fracture