Use the Computer Display to Answer the Question $= 31.55 + 10.90$

question 120

Multiple Choice

Use the computer display to answer the question.
-A collection of paired data consists of the number of years that students have studied Spanish and their scores on a Spanish language proficiency test. A computer program was used to obtain the least squares linear
Regression line and the computer output is shown below. Along with the paired sample data, the program was
Also given an x value of 2 (years of study) to be used for predicting test score.
The regression equation is Score $= 31.55 + 10.90$ Years.
$\begin{array} { l c l c c } \text { Predictor } & \text { Coef } & \text { StDev } & \text { T } & \text { P } \\\text { Constant } & 31.55 & 6.360 & 4.96 & 0.000 \\\text { Years } & 10.90 & 1.744 & 6.25 & 0.000\end{array}$

$\mathrm { S } = 5.651 \quad \mathrm { R } - \mathrm { Sq } = 83.0 \% \quad \mathrm { R } - \mathrm { Sq } ( \mathrm { Adj } ) = 82.7 \%$

Predicted values


If a person studies 4.5 years, what is the single value that is the best predicted test score? Assume that there is a
Significant linear correlation between years of study and test score.

• A) 53.35
• B) 83.0
• C) 49.1
• D) 80.6

Understand the structure and functions of different parts of the eye.

Recognize the color perception and its relationship with wavelengths.

Identify the cellular composition and layers of the retina.

Comprehend the changes in visual capabilities across the lifespan.

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