Name: Light Bulbs


Abstract: A sample of 100-watt light bulbs produced by two different manufacturers is given.


Variables (column):

  1. Manufacturer (0=Manufacturer A, 1=Manufacturer B)
  2. Life (length of bulb life in hours)


Possible Uses:  Frequency Distributions, Histograms, Percentage Distributions, Independent Sample T Test


References: Levine, David, Patricia Ramsey, and Robert Smidt.  Applied Statistics for Engineers and Scientists.  Upper Saddle River, NJ: Prentice Hall 2001.