a. Following is the scatter diagram and the regression line. 008 o 2 00 Co 8. o00 o o 200 400 600 800 1000 1200 1400 1600 enroll b. Which point is an outlier? c. Is the outlier influential? Explain....

Extracted text: a. Following is the scatter diagram and the regression line. 008 o 2 00 Co 8. o00 o o 200 400 600 800 1000 1200 1400 1600 enroll b. Which point is an outlier? c. Is the outlier influential? Explain. 006 08 02 009 009 Ooide


Extracted text: 4. The following output from R presents the results from computing a linear model. In our data example we are interested to study the relationship between students' academic performance api00 with variable enroll which is the number of students in the school. Call: Im (formula = api00 enroll, data = d) Residuals: мin 10 Median 30 Маx -285.50 -112.55 -6.70 95.06 389.15 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 744.25141 15.93308 46.711 < 2e-16="" ***="" enroll="" -0.19987="" 0.02985="" -6.695="" 7.34e-11="" ***="" ---="" signif.="" codes:="" o="" '="" ***="" '="" 0.001="" '**'="" 0.01="" '*'="" 0.05="" '.'="" 0.1="" '="" '="" 1="" residual="" standard="" error:="" 135="" on="" 398="" degrees="" of="" freedom="" multiple="" r-squared:="" 0.1012,="" adjusted="" r-squared:="" f-statistic:="" 44.83="" on="" 1="" and="" 398="" df,="" p-value:="" 7.339e-11="">