Consider the following data for two variables, x and y.
xi 4 5 7 8 10 12 12 22
yi 12 14 16 15 18 20 24 19
Enter negative values as negative numbers.
Compute the standardized residuals for these data (to 2 decimals).
Observation 1 -1.00 Observation 2 -0.40 Observation 3. 0.01 Observation 4. -0.48 Observation 5. 0.25 Observation 6. 0.65 Observation 7. 2.00 Observation 8 -2.16
Compute the leverage values for these data (to 2 decimals).
Observation 1 0.28
Observation 2 0.24
Observation 3 0.16
Observation 4 0.14
Observation 5 0.13
Observation 6 0.14
Observation 7 0.14
Observation 8. 0.76
Do there appear to be any influential observations in these data? 8
Does the scatter diagram indicate any influential observations? Explain.
If the leverage for an observation is greater , it is considered to have high leverage. Need Answer for this Question
Thus, we would conclude that observation 8 is an influential observation.