Apparently, larger planets have more moons, but is it the volume (as indicated by diameter) or mass that are more relevant, or is it both? These data include the diameter, mass, distance from the sun, and number of moons for 13 planets, gas giants, and dwarf planets in our solar system. Which size variable best explains mean number of moons (possible after accounting for distance from sun). (Consider negative binomial regression.)
A data frame with 13 observations on the following 5 variables.
a character variable with the name of the planet, gas giant, or dwarf planet)
distance from sun, relative to earth's
diameter of the planet, relative to earth's
mass, relative to earth's
number of moons
Ramsey, F.L. and Schafer, D.W. (2013). The Statistical Sleuth: A Course in Methods of Data Analysis (3rd ed), Cengage Learning.
Wikipedia: http://en.wikipedia.org/wiki/Planet August 10, 2011
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