Data Set 6-2
The correlation between a score based on anthropometric measurements (height, strength, reaction time and others) and college GPA is .05. Your task will be to predict GPA, given the anthro measurements. Be sure you set this up properly and work precisely. (Use 3 or 4 decimal places.)
$$\begin{array} { l r c }
& \underline{\text { GPA }} & \underline{ \text { Anthro Scores} } \
\text { Mean } & 2.5 & 10 \
\text { Standard Deviation } &0.5 & 2
\end{array}$$
-See Data Set 6-2. Suppose an excellent statistician used linear regression to predict the GPA for a person whose anthropometric score was 15. How likely is it that such a person would actually get the GPA predicted for her?
A) very
B) moderately
C) hardly.

Question

Data Set 6-2
The correlation between a score based on anthropometric measurements (height, strength, reaction time and others) and college GPA is .05. Your task will be to predict GPA, given the anthro measurements. Be sure you set this up properly and work precisely. (Use 3 or 4 decimal places.)
 $$\begin{array} { l r c } 
&  \underline{\text { GPA }} & \underline{ \text { Anthro Scores} } \
\text { Mean } & 2.5 & 10 \
\text { Standard Deviation } &0.5 & 2
\end{array}$$
-See Data Set 6-2. Suppose an excellent statistician used linear regression to predict the GPA for a person whose anthropometric score was 15. How likely is it that such a person would actually get the GPA predicted for her?
A) very
B) moderately
C) hardly.

Quizplus · Accepted Answer

The correlation coefficient of .05 indicates a very weak relationship between the anthropometric scores and GPA. Therefore, even with an excellent statistician using linear regression, the prediction of GPA based on anthropometric scores would be hardly accurate due to the low correlation.

Data Set 6-2 the Correlation Between a Score Based on Anthropometric

Data Set 6-2
the Correlation Between a Score Based on Anthropometric