3rd Edition

ISBN: 9780135188927

Author: Gould, Robert, Ryan, Colleen N. (colleen Nooter)

Publisher: Pearson,

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Textbook Question

Chapter 4, Problem 21SE

Airline Tickets (Example 2) The distance (in kilometers) and price (in dollars) for one-way airline tickets from San Francisco to several cities are shown in the table.

Chapter 4, Problem 21SE, Airline Tickets (Example 2) The distance (in kilometers) and price (in dollars) for one-way airline

a. Find the correlation coefficient for this data using a computer or statistical calculator. Use distance as the x-variable and price as the y-variable.

b. Recalculate the correlation coefficient for this data using price as the x-variable and distance as the y -variable. What effect does this have on the correlation coefficient?

c. Suppose a $50 security fee was added to the price of each ticket. What effect would this have on the correlation coefficient?

d. Suppose the airline held an incredible sale, where travelers got a round-trip ticket for the price of a one-way ticket. This means that the distances would be doubled while the ticket price remained the same. What effect would this have on the correlation coefficient?

Expert Solution & Answer

Chapter 4 Solutions

Introductory Statistics

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Solution Summary: The author explains how to calculate the correlation coefficient between distance and price using Excel.

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