Chrome File Edit View History Bookmarks Profiles Tab Window Help Q 8 Fri Feb 18 10:18 AM DAL ID D21 Quizzes - HPRO5503 & KINE5 G The normal distribution has fa Bromo NetID: April re C dal.brightspace.com/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d21?ou=203790&isprv=&drc=0&qi=116588&cfql=0&dnb... ( * O _ * 0 N Error Update : Course i Apps f Facebook G Google _ Project Free TV -... Project Free TV ::... SPORMAN - sale'... Buy TAKACS sale'... @ New Look | New L... PS, 10-Minute Flat-Be... Other Bookmarks Effec prog Test 1 X pilot Time Limit: 1:30:00 Time Left:1:16:13 Niousha Alizadeh Saravi: Attempt 1 Facili Pain with [ Page 1: Listen gemh PCC 2 3 The modified data set contains secondary school math scores (out of Com 100%) from 395 secondary school students in Portugal (http://archive.ics.uci.edu/ml/datasets/Student+Performance) 4 The researcher is interested whether alcohol consumption affects V student's math scores on a state math test (represented as a percentage Page 2: out of 100, e.g., 80%). The relevant variables are O 7 8 . the participants gender (0=female, 1=male, total 187 males) . Age (range 15-22 years) 9 10 . the number of alcoholic drinks per day during the week (ALC_weekday) . the number of alcoholic drinks per day on the weekend Page 3: (ALC_weekend). 11 12 13 Age and gender are entered in the first block, and ALC_weekday and ALC_weekend in the second block. Model Summary Adjusted R Std. Error of Durbin Model R R Square Square the Estimate Watson .189- .036 .031 22.54976 FEB 18 O WChrome File Edit View History Bookmarks Profiles Tab Window Help Q Fri Feb 18 10:19 AM DAL ID D21 Quizzes - HPRO5503 & KINE5 G The normal distribution has fa Bromo NetID: April re C dal.brightspace.com/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d21?ou=203790&isprv=&drc=0&qi=116588&cfql=0&dnb... ( x O _ * 0 N Error Update : Course i Apps f Facebook G Google _ Project Free TV -... Project Free TV ::... SPORMAN - sale'... Buy TAKACS sale'... New Look | New L... PS. 10-Minute Flat-Be... Other Bookmarks Effec prog Test 1 pilot X Time Limit: 1:30:00 Time Left:1:16:04 Niousha Alizadeh Saravi: Attempt 1 Facili Pain with [ Page 1: . the number or alconolic arinks per day on the weekend (ALC_weekend). gemh PCC 2 3 Com Age and gender are entered in the first block, and ALC_weekday and ALC_weekend in the second block. 4 Model Summary V Adjusted Sid. Error of Durbin- Model R R Square Square the Estimate Watson 189- 036 .031 22.54976 Page 2: .226 .051 041 22.43095 2.017 a. Predictors: (Constant), Age, 1=male b. Predictors: (Constant), Age, 1-male, ALC_weekday, ALC_weekend O 7 8 c. Dependent Variable: Math_Score ANOVA 9 10 Sum of Model Squares df Mean Square F Sig. Regression 7418.932 3709.466 7.295 .001 Residual 199328.790 392 508.492 Page 3: Total 206747.722 394 Regression 10520.109 2630.027 5.227 .OOO Residual 196227.613 390 503.148 11 12 13 Tota 206747.722 394 a. Dependent Variable: Math_Score b. Predictors: (Constant), Age, 1-male c. Predictors: (Constant), Age, 1=male, ALC_weekday, ALC_weekend Coefficients" Standardized Unstandardized Coefficients Coefficients Collinearity Statistics FEB 18 WChrome File Edit View History Bookmarks Profiles Tab Window Help Q Fri Feb 18 10:19 AM DAL ID D21 Quizzes - HPRO5503 & KINE5 G The normal distribution has fa Bromo NetID: April re C dal.brightspace.com/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d21?ou=203790&isprv=&drc=0&qi=116588&cfql=0&dnb... ( * O _ * 0 N Error Update : Course i Apps f Facebook G Google Project Free TV -... Project Free TV ::.. SPORMAN - sale'.. Buy TAKACS sale'.. New Look | New L... PS. 10-Minute Flat-Be.. Other Bookmarks Effec prog Test 1 pilot X Time Limit: 1:30:00 Time Left:1:16:01 Facili Niousha Alizadeh Saravi: Attempt 1 Pain with [ Page 1: Coefficients" gemh Standardized Unstandardized Coefficients Coefficients Collinearity Statistics PCC 2 3 Model Std. Error Beta Sig- Tolerance VIF Com (Constant) 97.512 14.983 6.508 .000 1=male 4.532 2.27 .099 1.994 -047 .999 1.001 Age -2.850 .891 -.159 3.200 001 .999 1.001 2 (Constant) 100.190 14.966 6.695 000 4 1 -male 5.179 2.357 .113 2.197 .029 .920 1.087 V Age -2.541 .897 -.142 -2.834 .005 .975 1.025 ALC_weekend -.312 1.007 -.018 -.310 .757 .759 1.318 ALC_weekday -2.387 1.124 -.116 -2.124 .034 .816 1.226 Page 2: a. Dependent Variable: Math_Score O 7 8 A. What type of model building technique was used? (1 point) B. Provide a write up describing the fit of the model and the 9 10 individual coefficients. (10 points) C. What is the regression equation for the model with all Page 3: predictors included? How does test scores change with weekday alcohol consumption in this model? (2 points) 11 12 13 D. What do the standardized coefficients represent? what can you conclude from the ones in our model? (4 points) FEB 18 W O F