Given a list of variable collected from students: -GPA -Average weekly hours spe

Question

Given a list of variable collected from students:
-GPA
-Average weekly hours spent working at a job
-Average weekly hours spent watching television
-Average weekly hours spent doing homework
-Average hours of sleep
-Height
-Weight
-Gender
-Race
-Age
-Hourly wage
a)choose two variables that you think will be positively associated. Explain your reasoning
b)choose two variables you think will be negative associated (you may reuse variables)
explain your reasoning.
c)choose two variables you think will not show association in a scatterplot. (you may reuse variables). Explain your reasoning.

Explanation / Answer

a) Average weekly hours spent doing homework, and Hourly wage

If the average weekly hours spent doing homework increases then the GPA also increase and vice versa. Also if the family income is high then he/she get more facilities which result high in GPA.

b) i)Average weekly hours spent working at a job

ii)Average weekly hours spent watching television

If he/she work more then the time for study may reduce which result in decrease GPA.

If the hours spent watching television then the study study may reduce which result in decrease GPA.

c) Gender, Races

Racesis not significant because it is not affected on the study hours, or IQ.

Also gender is also not affect the IQ and so it is not significant.

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