Question

Two variables are defined, a regression equation is given, and one data point is given. Hgt = height in inches Age = age in years of a child Hgt ^ = 24.6 + 2.71 ( Age ) The data point is a child 12 years old who is 60 inches tall. Incorrect answer. Incorrect. (a) Find the predicted value for the data point and compute the residual. Enter the exact answers.

Predicted value =

Entry field with incorrect answer inches

Residual =

Entry field with incorrect answer inches

Answer #1

Hello

Given regression equation : Hgt ^ = 24.6 + 2.71 ( Age )

(a) I have to find the predicted value for data point when age = 12 years and residual assuming Height of child is 60 inches.

Hence, the predicted value using the regression equation is :

Height = 24.6 + (2.71*12) = **57.12 inches**.

Residual = Actual height - Predicted Height = 60 - 57.12 =
**2.88 inches**.

I hope this solves your doubt.

Do give a thumbs up if you find this helpful.

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