Use the Given Data to Find the Best Predicted Value $\hat { y } = 2 + 3 x$

question 19

Multiple Choice

Use the given data to find the best predicted value of the response variable. Ten pairs of data yield r=0.003 and the regression equation $\hat { y } = 2 + 3 x$ Also, $\bar { y } = 5.0$ What is the best predicted value of y for x=2 ?

• A) 7.0
• B) 5.0
• C) 8.0
• D) 17.0

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Definitions:

Perfect Correlation

A statistical relationship indicating a flawless direct or inverse linkage between two variables.

Matched Design

A research design that matches the experimental participants with control participants who are similar on key characteristics.

Epidemiological

Relating to the study of how disease rates vary among different population groups to identify patterns, causes, and control health problems.

Experimental

Referring to a method of investigation in the sciences and social sciences in which variables are manipulated to observe and measure effects on a particular outcome.