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38 47 39 25

38 47 39 25

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Problem 3: A research study was conducted to examine the clinical efficacy of a new antidepressant. Depressed patients were randomly assigned to one of three groups: a placebo group, a group that received a low dose of the drug, and a group that received a moderate dose of the drug. After four weeks of treatment, the patients completed the Beck Depression Inventory. The higher the score, the more depressed the patient. The data are presented below. Compute the appropriate test. Give the following: Placebo Low Dose Moderate Dose 38 47 39 25 42 1. Null hypothesis 2. Alternative hypothesis 3. Statistical test 4. Computation 5. Decision 6. Conclusion 22 19 8 23 31 14 26 11 18 5
Transcribed Image Text:Problem 3: A research study was conducted to examine the clinical efficacy of a new antidepressant. Depressed patients were randomly assigned to one of three groups: a placebo group, a group that received a low dose of the drug, and a group that received a moderate dose of the drug. After four weeks of treatment, the patients completed the Beck Depression Inventory. The higher the score, the more depressed the patient. The data are presented below. Compute the appropriate test. Give the following: Placebo Low Dose Moderate Dose 38 47 39 25 42 1. Null hypothesis 2. Alternative hypothesis 3. Statistical test 4. Computation 5. Decision 6. Conclusion 22 19 8 23 31 14 26 11 18 5
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