EBK ESSENTIAL STATISTICS FOR THE BEHAVI
2nd Edition
ISBN: 8220107093466
Author: PRIVITERA
Publisher: SAGE
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Chapter 12, Problem 21CAP
a.
To determine
To Validate: Whether F statistic is 0 for a main effect or for interaction effect or both when cell means are equal.
b.
To determine
To Validate: Whether F statistic is 0 for a main effect or for interaction effect or both when Row totals are equal.
c.
To determine
To Validate: Whether F statistic is 0 for a main effect or for interaction effect or both when Column totals are equal.
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The data set Pain contains hypothetical data for a clinical trial of a drug therapy to control pain. The clinical trial investigates whether adverse responses increase with larger drug doses. Subjects receive either a placebo or one of four drug doses (1, 2, 3, or 4 units). An adverse response is recorded as Adverse = 'Yes'; otherwise, it is recorded as Adverse = 'No'. The number of subjects for each drug dose and response combination is contained in the variable Count.
(a) Construct a contingency table that corresponds to the data set created above. What type of variable is Dose?
(B) Compute the sample proportions of adverse responses at each dose level. Do you observe any trend in the proportion of adverse responses with respect to dose level?
(C) Conduct a Cochran-Armitage trend test at the 5% significance level to address the interests of the trial.
In class, we compared healing times for females who received an experimental cold sore medicine. The data for the male control and treatment groups are provided below; they represent the number of days that passed before the sores were completely gone. In your notebook, make a dotplot for each group.
Control: 20,13,22,21,16,5,21,11,16,14,15,15,13,16,10,17,16,11,21
Treatment: 11,16,8,16,15,12,11,12,12,9,11,19,16,13,5,15,12,8,11
Part A: Calculate the mean healing time for the control group, rounding your result to the nearest hundredth. In your notebook, mark an "X" on the horizontal axis of your dotplot to show the mean.Mean = daysPart B: Calculate the mean healing time for the treatment group, rounding your result to the nearest hundredth. In your notebook, mark an "X" on the horizontal axis of your dotplot to show the mean.Mean = days
2,
Chapter 12 Solutions
EBK ESSENTIAL STATISTICS FOR THE BEHAVI
Ch. 12 - Prob. 1FPCh. 12 - Prob. 2FPCh. 12 - Prob. 3FPCh. 12 - Prob. 4FPCh. 12 - Prob. 5FPCh. 12 - Prob. 6FPCh. 12 - Prob. 7FPCh. 12 - Prob. 8FPCh. 12 - Prob. 9FPCh. 12 - Prob. 10FP
Ch. 12 - Prob. 11FPCh. 12 - Prob. 12FPCh. 12 - Prob. 13CAPCh. 12 - Prob. 14CAPCh. 12 - Prob. 15CAPCh. 12 - Prob. 16CAPCh. 12 - Prob. 17CAPCh. 12 - Prob. 18CAPCh. 12 - Prob. 19CAPCh. 12 - Prob. 20CAPCh. 12 - Prob. 21CAPCh. 12 - Prob. 22CAPCh. 12 - Prob. 23CAPCh. 12 - Prob. 24CAPCh. 12 - Prob. 25CAPCh. 12 - Prob. 26CAPCh. 12 - Prob. 27CAPCh. 12 - Prob. 28CAPCh. 12 - Prob. 29PRCh. 12 - Prob. 30PRCh. 12 - Prob. 31PRCh. 12 - Prob. 32PR
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