Homework Answers
DONE USING SPSS:
Enter the data in data view window.Analyze -> Compare Means -> One way Anova - > Assign independent and dependent variable - > Posthoc - > Scheffes's - > continue - > Ok
Since the p value < 0.05,reject H0.Therefore we conclude that the mean difference is significant at 0.05 level of significance.
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Four treatments (Placebo, A, B, C) were randomly assigned to 32 patients. Data below give for eac...
2. An experiment was conducted to compare five treatments for reducing fever. Thirty-five patients were randomly...
2. An experiment was conducted to compare five treatments for reducing fever. Thirty-five patients were randomly assigned into five treatment groups. The patients' temperatures were taken two hours after receiving the treatment, and are given below. We will test the claim that there is no difference in mean body temperature among each of the five treatment groups using a 5% significance level. Placebo Aspirin Anacin Tylenol Bufferin 98.3 96.0 97.2 95.1 96.1 98.7 96.6 97.4 95.7 96.5 98.1 95.3 96.9...
Thirty-two patients suffering from depression were randomly assigned to one of four drug treatment groups: 0...
Thirty-two patients suffering from depression were randomly assigned to one of four drug treatment groups: 0 mg (placebo), 1 mg, 2 mg, or 3 mg of antidepressant drug. The table below summarizes the patients' improvement scores in personal adjustment following one month of drug therapy. Treatment 1 (0 mg) 2 (1 mg) 3 (2 mg) 4 (3 mg) n 8 8 8 8 sum 43 57 102 92 means 5.38 7.13 12.75 11.50 Source SS df MS F Between (A)...
Thirty-two patients suffering from depression were randomly assigned to one of four drug treatment groups: 0...
Thirty-two patients suffering from depression were randomly assigned to one of four drug treatment groups: 0 mg (placebo), 1 mg, 2 mg, or 3 mg of antidepressant drug. The table below summarizes the patients' improvement scores in personal adjustment following one month of drug therapy. Treatment 1 (0 mg) 2 (1 mg) 3 (2 mg) 4 (3 mg) In 18 8 8 8 sum 43 57 102 92 means 5.38 7.13 12.75 11.50 Source SS df MSF Between (A) (2)...
Thirty-two patients suffering from depression were randomly assigned to one of four drug treatment groups: 0...
Thirty-two patients suffering from depression were randomly assigned to one of four drug treatment groups: 0 mg (placebo), 1 mg, 2 mg, or 3 mg of antidepressant drug. The table below summarizes the patients' improvement scores in personal adjustment following one month of drug therapy. Treatment | 1 (0 mg) 2 (1 mg) 3 (2 mg) 4 (3 mg) 8 8 43 57 102 92 means 5.38 7.13 12.75 11.50 n 8 8 sum MS IF Source SS df Between...
The following data are from an independent-measures experiment comparing the effects insomnia treatments on the amount...
The following data are from an independent-measures experiment comparing the effects insomnia treatments on the amount of sleep participants acquire. The data below show the number of hours a participant slept in a single night. Treatment 1 is the control condition, Treatment 2 is a behavioral therapy, and Treatment 3 is the administration of sleep aids. Treatment 1 Treatment 2 Treatment 3 ZX2 = 114 4 ss 7.5 T 12 SS 4 T= 21 SS 3.5 ESTION 21 Complete the...
PROBLEM #3: dyskinesia denotes a syndrome comprising a variety of abnormal involuntary 15 assumed to follow...
PROBLEM #3: dyskinesia denotes a syndrome comprising a variety of abnormal involuntary 15 assumed to follow long-term use of antipsychotic drugs. In an experiment to sce whether the drug deanol produced a greater improvement from base-line scores than a placebo treatment (“Double Blien Evaluation of Deanol in Tardive Dyskinesia," J. Amer. Med. Assn., 1978, pp. 1997-1998), the two treatments were administered for four- weeks each in random order to 14 patients, resulting in the following total severity index (TSI) scores:...
PROBLEM #3: Tardive dyskinesia denotes a syndrome comprising a variety of abnormal involuntary movements assumed to...
PROBLEM #3: Tardive dyskinesia denotes a syndrome comprising a variety of abnormal involuntary movements assumed to follow long-term use of antipsychotic drugs. In an experiment to see whether the drug deanol produced a greater improvement from base-line scores than a placebo treatment (“Double Blien Evaluation of Deanol in Tardive Dyskinesia," Amer. Med. Assn., 1978, pp. 1997-1998), the two treatments were administered for four weeks each in random order to 14 patients, resulting in the following total severity index (TSI) scores:...
Randomly selected students in a statistics class were asked to report the number of hours they...
Randomly selected students in a statistics class were asked to report the number of hours they slept on weeknights and on weekends. At α = 0.05, the experimenter wants to know if there is sufficient evidence that there is a difference in the mean number of hours slept. Student 1 2 3 4 5 6 7 8 Hours Sun-Thurs 8 5.5 7.5 8 7 6 6 8 Hours Fri-Sat 4 7 10.5 12 11 9 6 9 a. State the hypotheses and identify the claim. b. A student calculates the test statistic using this formula: Is this the correct formula to use for this situation? (Hint:...
Review the table / figure below to answer the questions. These data were collected from people...
Review the table / figure below to answer the questions. These data were collected from people that had a condition called "subclinical hypothyroidism" - in which the thyroid gland makes adequate T3/T4, but there is elevated TSH. There are strong correlations between chronically elevated TSH and cardiac problems. In this paper, the authors wanted to know whether treatment with T4 would lower TSH levels and therefore alleviate cardiac symptoms. Table 4. Changes in Thyroid Function in Patients with Subclinical Hypothyroidism...
“M” virus has struck (severe flu-like symptoms). Researchers randomly assigned a sample of individuals afflicted with...
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2. An experiment was conducted to compare five treatments for reducing fever. Thirty-five patients were randomly assigned into five treatment groups. The patients' temperatures were taken two hours after receiving the treatment, and are given below. We will test the claim that there is no difference in mean body temperature among each of the five treatment groups using a 5% significance level. Placebo Aspirin Anacin Tylenol Bufferin 98.3 96.0 97.2 95.1 96.1 98.7 96.6 97.4 95.7 96.5 98.1 95.3 96.9...
Thirty-two patients suffering from depression were randomly assigned to one of four drug treatment groups: 0 mg (placebo), 1 mg, 2 mg, or 3 mg of antidepressant drug. The table below summarizes the patients' improvement scores in personal adjustment following one month of drug therapy. Treatment 1 (0 mg) 2 (1 mg) 3 (2 mg) 4 (3 mg) In 18 8 8 8 sum 43 57 102 92 means 5.38 7.13 12.75 11.50 Source SS df MSF Between (A) (2)...
Thirty-two patients suffering from depression were randomly assigned to one of four drug treatment groups: 0 mg (placebo), 1 mg, 2 mg, or 3 mg of antidepressant drug. The table below summarizes the patients' improvement scores in personal adjustment following one month of drug therapy. Treatment | 1 (0 mg) 2 (1 mg) 3 (2 mg) 4 (3 mg) 8 8 43 57 102 92 means 5.38 7.13 12.75 11.50 n 8 8 sum MS IF Source SS df Between...
The following data are from an independent-measures experiment comparing the effects insomnia treatments on the amount of sleep participants acquire. The data below show the number of hours a participant slept in a single night. Treatment 1 is the control condition, Treatment 2 is a behavioral therapy, and Treatment 3 is the administration of sleep aids. Treatment 1 Treatment 2 Treatment 3 ZX2 = 114 4 ss 7.5 T 12 SS 4 T= 21 SS 3.5 ESTION 21 Complete the...
PROBLEM #3: dyskinesia denotes a syndrome comprising a variety of abnormal involuntary 15 assumed to follow long-term use of antipsychotic drugs. In an experiment to sce whether the drug deanol produced a greater improvement from base-line scores than a placebo treatment (“Double Blien Evaluation of Deanol in Tardive Dyskinesia," J. Amer. Med. Assn., 1978, pp. 1997-1998), the two treatments were administered for four- weeks each in random order to 14 patients, resulting in the following total severity index (TSI) scores:...
PROBLEM #3: Tardive dyskinesia denotes a syndrome comprising a variety of abnormal involuntary movements assumed to follow long-term use of antipsychotic drugs. In an experiment to see whether the drug deanol produced a greater improvement from base-line scores than a placebo treatment (“Double Blien Evaluation of Deanol in Tardive Dyskinesia," Amer. Med. Assn., 1978, pp. 1997-1998), the two treatments were administered for four weeks each in random order to 14 patients, resulting in the following total severity index (TSI) scores:...
Review the table / figure below to answer the questions. These data were collected from people that had a condition called "subclinical hypothyroidism" - in which the thyroid gland makes adequate T3/T4, but there is elevated TSH. There are strong correlations between chronically elevated TSH and cardiac problems. In this paper, the authors wanted to know whether treatment with T4 would lower TSH levels and therefore alleviate cardiac symptoms. Table 4. Changes in Thyroid Function in Patients with Subclinical Hypothyroidism...
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