Question

State the null and research hypothesis: Nursing home psychologists believed that attitude is as important as medical diagnosis in the longevity of patients with moderate health impairment. They looked at nursing home residents with fifferent medical diagnosis (heart disease, lung disease, cancer, diabetes, dementia), and measured their anxiety, depression, loneliness, hopefulness and optimism. They combined these into an “Attitude” score, where a higher score on the Attitude Scale indicates a more optimistic, hopeful, and less depressed attitidue). They correlated all measures with prognosis and longevity.

Answer 1

Based on the problem given, the appropriate hypotheses are,

Null Hypothesis H0: The average longevity of patients with moderate health impairment is same for all patient attitudes. Or, the longevity of patients with moderate health impairment and attitude are independent.

Alternative Hypothesis H0: The average longevity of patients with moderate health impairment is lower for patients with high attitudes score (optimistic, hopeful). Or, the longevity of patients with moderate health impairment and attitude are dependent.