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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
In a classic study of peptic ulcer, blood types were determined for 1,655 ulcer patients. The accompanying table shows the data for these patients and for an independently chosen group of 10,000 healthy controls from the same city.32

(a) The value of the chi-square statistic for this contingency table isÂ
. Carry out the chi-square
test at
.
(b) Construct a table showing the percentage distributions of blood type for patients and for controls.
(c) Verify the value of
 given in part (a).
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