Abstract
Suppose an investigator interviews a random sample of motorists to determine how far each motorist travels per week on shopping and pleasure trips. He has been told that there is a close correlation between the distances motorists travel and their sex. In order to check this assertion, he divides his sample into male and female motorists, and then does a t-test to determine whether the mean distances are significantly different for the two sexes.
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© 1986 R. B. G. Williams
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Williams, R.B.G. (1986). The Point Biserial and Phi Coefficients of Correlation. In: Intermediate Statistics for Geographers and Earth Scientists. Palgrave, London. https://doi.org/10.1007/978-1-349-06813-5_5
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DOI: https://doi.org/10.1007/978-1-349-06813-5_5
Publisher Name: Palgrave, London
Print ISBN: 978-0-333-35274-8
Online ISBN: 978-1-349-06813-5
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