Nine pairs of data yield r=0.867 and the regression equation y=19.4+0.93x

What is the best predicted value of y for x=20?

Respuesta :

Answer:

38

Step-by-step explanation:

Regression analysis is the relationship among one dependent variable and one or more independent variables. Method of regression is used in finance, investing, and other disciplines.

Given:

Nine pairs of data yield and the regression equation [tex]y=19.4+0.93x[/tex]

To find:

the best predicted value of y for [tex]x=20[/tex]

Solution:

[tex]y=19.4+0.93x[/tex]

Put [tex]x=20[/tex]

[tex]y=19.4+0.93(20)\\=19.4+18.6\\=38[/tex]