A dental researcher investigated the occurrence of edentulism (defined in the research study as loss of two
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A dental researcher investigated the occurrence of edentulism (defined in the research study as loss of two or more permanent teeth, not including loss of prophylactically extracted wisdom teeth) in a rural Latin American village. A total of 34 out of 100 sampled adults had lost at least two teeth.
A study of a U.S. city found that the rate of loss of at least two teeth was 14%. Was the proportion of persons who had edentulism higher in the Latin American village than in the U.S. city? Conduct the test at the =
0.05 level.
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Introductory Biostatistics For The Health Sciences
ISBN: 9780471411376
1st Edition
Authors: Michael R. Chernick, Robert H. Friis
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