Exhibit 14-6
You Are Given the Following Information About Y $\alpha$

question 52

Essay

Exhibit 14-6
You are given the following information about y and x.
-Given below are seven observations collected in a regression study on two variables, x (independent variable) and y (dependent variable).
a.Develop the least squares estimated regression equation.
b.At 95% confidence, perform a t test and determine whether or not the slope is significantly different from zero.
c.Perform an F test to determine whether or not the model is significant. Let $\alpha$ = 0.05.
d.Compute the coefficient of determination.

---

Definitions:

Red Beryl

A rare mineral that is red in color and is composed of beryllium, aluminum, and silicate.

Monopoly Power

The ability of a single seller in a market to control the prices of goods or services, usually due to lack of competition.

Local Water Company

A utility firm responsible for the supply and management of water within a specific local area.

Natural Monopoly

A market structure where a single firm can provide a product or service at a lower cost than any potential competitor, often due to economies of scale.