Shown Below Is a Portion of a Computer Output for a Regression

question 44

Essay

Shown below is a portion of a computer output for a regression analysis relating y (demand) and x (unit price). $$\begin{array}{l}\text { ANOVA }\\\begin{array} { l l l } & d f & S S \\\text { Regression } & 1 & 5048.818 \\\text { Residual } & 46 & 3132.661 \\\text { Total } & 47 & 8181.479 \\\\& \text { Coefficients } & \text { Standard Error } \\\text { Intercept } & 80.390 & 3.102 \\\mathrm { X } & - 2.137 & 0.248\end{array}\end{array}$$ ​
a.
Perform a t test and determine whether or not demand and unit price are related. Let α = .05.
b.
Perform an F test and determine whether or not demand and unit price are related. Let α = .05.
c.
Compute the coefficient of determination and interpret its meaning. Be very specific.
d.
Compute the coefficient of correlation and explain the relationship between demand and unit price.

---

Definitions:

HR Activities

Tasks and initiatives undertaken by the Human Resources department to manage and support an organization's workforce.

Internal Environment

The internal and external influences, including conditions, entities, events, and factors, that impact the actions and decisions of an organization.

Instrumentality

A theory that people will be motivated to perform if they believe that their efforts will lead to good performance and ultimately, to desired rewards.

Outcome

The result or effect of an action, situation, or event.