Let X Be the Number of Pages in a Statistics

question 11

Essay

Let x be the number of pages in a statistics text book and y be the cost of the book (in dollars.) Suppose that x and y are related according to the simple linear regression model with
β
= slope of the population regression line = 0.075
α
= y intercept of population regression line = 25.0
​
a)What is the equation of the population regression line?
b)On the graph below, sketch the population regression line using the information above. Be sure to label and scale your axes correctly. c)For a statistics book of 900 pages, what is the predicted cost in dollars?
d)What is the average change in price that is associated with a one-page increase in size of a statistics book?
e)What is the average change in price that is associated with a 20-page increase in size of a statistics book?

---

Definitions:

Federal Aid

Financial assistance provided by the federal government to state or local governments, institutions, or individuals for a variety of purposes.

Antimasons

A historical political movement that emerged in the early 19th century United States, opposing Freemasonry due to concerns about its secrecy and influence.

Convention System

Refers to the process by which political parties select their candidates for election through conventions, replacing the earlier caucus system and leading to more democratic participation within the party.

Presidential Primary

A primary election in which the voters indicate preferences for nominees for President of the United States directly by vote or indirectly through the selection of delegates.