Question: 22. The following data give hours per week a student studies and their GPA for 10 students. Studen B C D E F G H

22. The following data give hours per week a student studies and their GPA for 10 students. Studen B C D E F G H Hours 2 1.5 1 3 A 5.5 6 12 3 2.5 Studied GPA 2.31 189 193 236 279 3.04 3.27 4 2.48 2.18 a Make a scatter plot of the data. Is the correlation, positive, negative, or zero? C. Sketch a line of best fit over the scatter plot. d. Estimate the GPA for a student who studies 10 hours per week. Is your estimate reasonable? Explain. Given the regression equation: GPA=0.198*HoursStudied+1.824 , calculate the predicted GPA for a student who studies 10 hours per week. f. Calculate the GPA for a student who studies 25 hours per week. Is your answer reasonable? Explain. g. What does the point (6, 3.012) on your regression line represent? h. If a student had a GPA of 3.96, how many hours of studying per week would you predict that student does? i. State whether you think the association between the variables is due to a direct causal relationship, chance, a common third variable, or a casual relationship confounded by multiple

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