estion Completion Status: QUESTION 16 Use computer software to find the multiple
ID: 3370447 • Letter: E
Question
estion Completion Status: QUESTION 16 Use computer software to find the multiple regression equation. Can the equation be used for prediction A wildlife analyst gathered the data in the table to develop an equation to predict the weights of bears. H WEIGHT as the dependent variable and CHEST, LENGTH, and SEX as the independent variables. For SEX, male-1 and female-2. WEIGHT CHEST LENGTH SEX 344 416 540 720 1 220 410 70.0 2 45.0 67.5 360 49.0 685 332 440 73.0 140 320 630 436 480 720 1 132 330 610 2 356 480 640 2 150 35.0 59.0 1 202 40.0 63.0 2 365 500 7051 70.5 0 WEIGHT = 442.6 + 12.1 CHEST + 42LENGTH-21 SEX: Yes, because the P-value is low WEIGHT -320+10.6CHEST+7.3LENGTH- 10.7SEX: Yes, because the P-value is high WEIGHT 196+2.35CHEST 3.4OLENGTH+25SEX; Yes, because the R2 is high WEIGHT- 442.6+ 12.1CHEST+3.6LENGTH-23.8SEX; Yes, because the adjusted R2 is high QUESTION 17 Use computer software to obtain the multiple regression equation and identify R2, adjusted R2, and the P-value A wigife analyst gathered the data in the table to develop an equation to predict the weights of bears, He used Click Save and Submit to save and submit. Click Save All Answers to save all answers P11 F10Explanation / Answer
Sol:
Go to
Data >Data analysis >Regression
Regression equation is
weight=-442.6+12.1*chest+3.6 *length-23.8 *sex
OPTION D
SUMMARY OUTPUT Regression Statistics Multiple R 0.962941 R Square 0.927255 Adjusted R Square 0.899976 Standard Error 35.21784 Observations 12 ANOVA df SS MS F Significance F Regression 3 126477.9 42159.29 33.99131 6.69E-05 Residual 8 9922.37 1240.296 Total 11 136400.3 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept -442.601 196.2252 -2.25558 0.054094 -895.098 9.894904 chest 12.12851 2.350282 5.160452 0.000863 6.708756 17.54827 length 3.577927 3.40122 1.051954 0.323555 -4.2653 11.42115 sex -23.844 25.11364 -0.94944 0.370191 -81.7562 34.06817Related Questions
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