Every year, the Environmental Protection Agency (EPA)
  collects data on fuel economy. With rising gasoline
  prices, consumers are using these figures as they decide
  which automobile to purchase. We will look at two-seater
  automobiles, many of which are sporty vehicles. The 2007
  EPA sample is used to test the hypothesis that the
  combined city and highway miles per gallon (mpg) of
  two-seater automobiles is greater than 20. The standard
  deviation for all vehicles is 4.7 mpg.

datasets

Data sets and utilities from Project MOSAIC
        (mosaic-web.org) used to teach mathematics, statistics,
        computation and modeling.  Funded by the NSF, Project MOSAIC is
        a community of educators working to tie together aspects of
        quantitative work that students in science, technology,
        engineering and mathematics will need in their professional
        lives, but which are usually taught in isolation, if at all.

Randall Pruim

mosaic

Project MOSAIC (mosaic-web.org) statistics and mathematics
        teaching utilities

EPA function

A data frame with 71 observations on the following variables.<p></p><p>   <ul><li><code>class</code></li></ul>{automobile type <code>TWO SEATERS</code>}
    <item><code>mfr</code></item>{automobile brand: one of <code>MERCEDES=BENZ</code> <code>PORSCHE</code> <code>BMW</code> <code>LAMBORGHINI</code> <code>CHRYSLER</code> <code>FERRARI</code> <code>ASTON MARTIN</code> <code>CADILLAC</code> <code>CHEVROLET</code> <code>HONDA</code> <code>LOTUS</code> <code>MAZDA</code> <code>NISSAN</code> <code>PONTIAC</code> <code>SATURN</code> <code>SPYKR</code>}
    <item><code>line</code></item>{model}
    <item><code>displace</code></item>{displacement of the engine}
    <item><code>cylinders</code></item>{number of cylinders}
    <item><code>trans</code></item>{transmission type}
    <item><code>drive</code></item>{drive system, 4 = , R = }
    <item><code>city</code></item>{city mileage (in miles per gallon)}
    <item><code>hwy</code></item>{highway mileage (in miles per gallon)}
    <item><code>mpg</code></item>{combined city and highway (in miles per gallon)}</p>

EPA: EPA Fuel Economy

Description

Usage

Arguments

format

References