Question 6) The survey was conducted for 62 women with HIV. The survey include questions regarding the subjects symptoms management, coping, depression, social support, physical activity, work function, quality of life, age (years), race (1=Black and 2=White), and Payjob (1=yes and 2=no). The following is the description of variables in dataset: (Each part 3 points total 9 points)

tfreq = 'total /hivsymfreq'

tboth = 'total / hivsymboth '

tphys = 'total / fsq activity of daily living'

ttime = 'total / fsq work function '

tss = 'total / social support'

tcope = 'total score / cope '

tcopea = 'cope score / avoidance'

tcopess= 'cope score / seeking social support'

tcopesa= 'cope score / spiritual activities'

tcopemi= 'cope score / managing the illness'

tcopefo= 'cope score / focusing on others'

tcopept= 'cope score / positive thinking'

tcopefp= 'cope score / focus on present'

tcopeis= 'cope score / informaion seeking'

tcesd = 'total/ depression (cesd)'

tlslp= 'total score / lsl /presently'

ages = ' age / '

RACEg = 'BELONGING RACE'

PAYJOB= 'HAVE PAYING JOBS'

NCHILD= 'NO. OF CHILDREN GIVEN BIRTH TO'

The following is the sas output for this dataset.

a)Fit a model of Tfreq as predicted by Tphys, ages, tss, ttime, tcopefo, tcopemi, and tlslp.Which variables are significant at alpha .05. Explain your result.

1.Prediction Equation: Tfreq = 57.59 + .68 Ages -1.24 Physical Activity + .13 TSS + 2.4 ttime - .03 Tcopefo -1.45 tcopemi -.136 tlslp.

2.Prediction Equation: Tfreq = 57.59 + .68 Ages -1.24 Physical Activity .

3.Prediction Equation: Tfreq = 57.59 + .68 Ages -1.24 Physical Activity + .13 TSS + 2.4 ttime.

4.Prediction Equation: Tfreq = 57.59 + .68 Ages -1.24 Physical Activity + .13 TSS + 2.4 ttime - .03 Tcopefo -1.45 tcopemi.

b)What is R² and Adjusted R² for this model?

1. .81 and .76

2. .70 and .76

3. .81 and .70

4. .40 and .32

c)Predict from multiple regression for the following subject: ages = 41, tphys =20, tss=50, ttime=10,tcopefo=5, tcopemi=10, and tlslp=30.

1. 65.98

2.25.58

3. 98.75

4. 72.44