project4_509 - STA 6166 Fall 2010 Projects 4&5 Due Monday...

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STA 6166 – Fall 2010 Part 1: Chi-Square Test for Association A study was conducted, investigating the prevalence of Baylisascaris procyonis eggs in Procyon lotor fecal samples during 4 seasons of the year. The following contingency table classifies sampled Procyon lotor fecal samples by season and presence/absence of of Baylisascaris procyonis eggs. Season Fecal Samples with eggs Fecal Samples w/out eggs July-August 5 46 September-November 45 61 December-February 2 22 March-May 4 92 Obtain a table of expected cell counts, under the hypothesis that the prevalence of the eggs in fecal samples is independent of season. Conduct the Pearson chi-square test to determine whether the prevalence of the eggs in fecal samples is independent of season ( α =0.05). Obtain a cluster bar graph of egg presence/absence in fecal samples, separately by season. Part 2: Relative Risk and Odds Ratio
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This note was uploaded on 06/04/2011 for the course STA 6166 taught by Professor Staff during the Fall '08 term at University of Florida.

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project4_509 - STA 6166 Fall 2010 Projects 4&5 Due Monday...

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