High Score the Longer You Play a Video Game, the Higher

question 363

Essay

High Score The longer you play a video game, the higher score you can usually achieve.
An analysis of a popular game found the following relationship between the hours a
player has played a game and their corresponding high score on that game. Dependent variable is High Score
R-squared $= 76.5 \%$
$s = 383.3$ with 89 degrees of freedom
$\begin{array} { l c c } \text { Variable } & \text { Coefficient } & \text { s.e. of Coeff } \\ \text { Constant } & 524.8 & 145.3 \\ \text { Hours } & 2498.8 & 324.5 \end{array}$
a. Write the regression equation and define the variables of your equation in context.
b. Interpret the slope in context.
c. Interpret the y-intercept in context.
d. Interpret s in context.
e. What is the correlation coefficient? Interpret this value in context.

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Definitions:

Puberty Rites

Traditional ceremonies that mark the transition from childhood to adulthood.

Sexual Maturity

The stage in an organism's life cycle when it becomes capable of reproductive activity.

Secular Trend

Trend that can be seen only by observing several generations, such as the trend toward earlier attainment of adult height and sexual maturity, which began a century ago in some countries.

Primary Sex Characteristics

Organs directly related to reproduction, which enlarge and mature during adolescence.