The blood types of malaria patients at a clinic in India were compared with those obtained in

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The blood types of malaria patients at a clinic in India were compared with those obtained in a sample of visitors to a nearby hospital. The data are shown in the following table. Use these data to conduct a test of the null hypothesis that blood type is independent of contracting malaria.
The blood types of malaria patients at a clinic in

Here is computer output for a chi-square test.
X-squared = 34. 929, p-value = 1.26e-07
(a) If the null hypothesis were true, how many malaria cases would we expect to see in individuals with type A blood in similar studies of this size?
(b) How many degrees of freedom are there?
(c) If α = 0.05, what is your conclusion regarding H0?

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Statistics For The Life Sciences

ISBN: 9780321989581

5th Edition

Authors: Myra Samuels, Jeffrey Witmer, Andrew Schaffner

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