maiyanickerson maiyanickerson

06-05-2024
Mathematics

Answered

Below is the sample data collected showing the number of hours per week that students are watching TV in relation to the
GPA in school.

GPA(x) 2.0 2.8 3.4 3.7 3.8
Hr/ wk of tv (y) 20 15 10 7 14

a. Make a scatter plot of GPA versus hours per week of TV.
b. Does the scatter plot show positive/negative/no correlation? Justify your answer.
c. Write the least-square regression line (best fit line). Graph the line on the same graph as part (a).
d. If a student with a GPA of 3.0, how long does he/she watch TV per week?
e. Is there a linear correlation between the two variables? (Hint: find t-test statistic value

Answer :

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