Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 3: Q. 5 (page 158)

Airlines have increasingly outsourced the maintenance of their planes to other companies. Critics say that the maintenance may be less carefully done so outsourcing creates a safety hazard. As evidence, they point to government data on the percent of major maintenance outsourced and the percent of flight delays blamed on the airline (often due to maintenance problems): Make a scatterplot by hand that shows how delays relate to outsourcing.

AirlineOutsource percentDelay percentAirTran6614Alaska9242American4626America West7639ATA1819Continental6920Delta4826Frontier6531Hawaiian8070JetBlue6818Northwest7643Southwest6820United7727US Airways6324

Short Answer

Expert verified

The scatter diagram is

Step by step solution

01

Given Information

Given in the question that, a table

02

Explanation

A scatterplot depicts the relationship between two quantitative variables assessed on the same individuals. The values of one variable are displayed on the horizontal axis, while the values of the other variable are displayed on the vertical axis. A point on the graph represents each person in the data. On the horizontal axis, the outsource percent is plotted, while the delay percent is plotted on the vertical axis.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Marijuana and traffic accidents (1.1) Researchers in New Zealand interviewed 907 drivers at age 21

They had data on traffic accidents and they asked the drivers about marijuana use. Here are data on the numbers of accidents caused by these drivers at age 19, broken down by marijuana use at the same age

(a) Make a graph that displays the accident rate for each class. Is there evidence of an association

between marijuana use and traffic accidents?

(b) Explain why we can’t conclude that marijuana use causes accidents.

If we leave out the low outlier, the correlation for the remaining 13 points in the figure above is closest to

(a)−0.95.(b) −0.5.

(c)0. (d) 0.5 (e)0.95.

Beavers and beetles Do beavers benefit beetles? Researchers laid out 23 circular plots, each 4 meters in diameter, in an area where beavers were cutting down cottonwood trees. In each plot, they counted the number of stumps from trees cut by beavers and the number of clusters of beetle larvae. Ecologists think that the new sprouts from stumps are more tender than other cottonwood growth, so beetles prefer them. If so, more stumps should produce more beetle larvae. Here are the data:

Measurements on young children in Mumbai, India, found this least-squares line for predicting height y from the arm span x: y⏜=6.4+0.93x

Measurements are in centimeters (cm).

How much does height increase on average for each additional centimeter of arm span?

(a)0.93cm(c)5.81cm(e)7.33cm(b)1.08cm(d)6.4cm

Bird colonies One of nature’s patterns connects the percent of adult birds in a colony that return from the previous year and the number of new adults that join the colony. Here are data for 13colonies of sparrow-hawks:4

(a) Describe the direction, form, and strength of the relationship between number of new sparrow-hawks in a colony and percent of returning adults.

(b) For short-lived birds, the association between these variables is positive: changes in weather and food supply drive the populations of new and returning birds up or down together. For long-lived territorial birds, on the other hand, the association is negative because returning birds claim their territories in the colony and don’t leave room for new recruits. Which type of species is the sparrow-hawk? Explain.
See all solutions

Recommended explanations on Math Textbooks

Logic and Functions

Read Explanation

Probability and Statistics

Read Explanation

Discrete Mathematics

Read Explanation

Theoretical and Mathematical Physics

Read Explanation

Decision Maths

Read Explanation

Pure Maths

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free