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The file blood.csv, which has two columns: Type (for blood type), and Disease (either yes or no), which is data taken from a random sample from a...
The file blood.csv, which has two columns:
Type (for blood type), and
Disease (either yes or no), which is data taken from a random sample from a particular area.
Use R and this data to answer the following questions:
(Download blood.csv from here: https://drive.google.com/file/d/1C3Llv1Fy1nx7XQNv-wVgOFq9ZZ6Kzfc4/view?usp=sharing)
(a) State the appropriate null and alternative for testing if having this particular disease is independent of blood type.
(b) Find the Pearson test-statistic and corresponding the p-value.
(c) State your conclusion in terms of the problem, assuming α = 0.01.
(d) Were blood type (A) individuals more or less likely to have the disease than what we expected if the null was true?
(e) Were blood type O individuals more or less likely to have the disease than what we expected if the null was true? (f) Which group contributed most to the value of the test-statistic?
(Download blood.csv from here: https://drive.google.com/file/d/1C3Llv1Fy1nx7XQNv-wVgOFq9ZZ6Kzfc4/view?usp=sharing)
