Chi-square for independence of attributes and marasuilo

Assignment Help Basic Statistics

Reference no: EM1313861

The Health care industry and consumer advocacy groups are at odds over the sharing of a patient's medical records without the patients' consent. The health care industry believes that no consent should be necessary to openly share data among doctors, hospitals, pharmacies, and insurance companies.

Suppose a study conducted in which 600 patients are randomly assigned, 200 each, to three "organizational groupings"-Insurance companies, pharmacies, and medical researchers. Each patient is given material to read about the advantages and disadvantages concerning the sharing of medical records within the assigned "organizational groupings". Each patient is then asked "would you object to the sharing of your medical records with ..." and the results are recorded in the cross-classification table below.

Organizational Groupings:


Object to sharing information	Insurance	Pharmacies	Research
Yes	40	80	90
No	160	120	110

a) Is there evidence of a difference in objection to sharing information among the organizational groupings? (use α = 0.05)

b) Compute the p-value and interpret the meaning

c) If appropriate, use the Marascuilo procedure and α = 0.05 to determine which groups are different.

Reference no: EM1313861

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