Question

Topic Seven Homework × 1 + Portal | Main ucsuearnrg Platform ILCS Studen/ Assignment st dep 20428345 Q15 My Notes Ask Your A forensic peychologist tests the extent to which the age of a criminal (X) predicts the age of the victim (Y) for nonviolent crimes. The psychologist uses the case to record the age of five criminals and the age of the victim in those cases. The hypothetical data are listed in the following table. 21 26 29 17 13 (a) Compute the method of least squares to find the equation ofthe regression line. (Round your answers to three decimal places, ) x x+12 163 (b) Use the regression equation to determine the predicted age of a victim of a nonviolent crime computing the method of least squares (Section 16.5) of 20

Answer 1

Ans

Age of Criminal	Age of Victim
X	Y
32	25
25	21
29	26
17	22
13	16

since using the microsoft excel here i fit the regression line by regression output

	Coefficients	Standard Error	t Stat	P-value
Intercept	12.15265	3.470132	3.502071	0.039422
X Variable 1	0.424455	0.142912	2.970053	0.059066

for the given data

since

Y-12.153 +0.4245X

Predicted age of victim(Y) for X= 23 is

У-12.153 +0.4245 *23 Y 21.915