The Analysis of Biological Data
2nd Edition
ISBN: 9781936221486
Author: Michael C. Whitlock, Dolph Schluter
Publisher: W. H. Freeman
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Chapter 1, Problem 19AP
(a)
To determine
To explain:About the explanatory variable and the response variable of the hypothetical follow-up study conducted to determine the relationship between warfarin resistances in house mice with the presence of the mutations of the vkore I gene.
(b)
To determine
To explain:
About the explanatory variable and response variable of a study which is conducted to identify an effective treatment from two treatments of naturopathic care and standardized psychotherapy for a sample of eighty-one individuals that having moderate to severe anxiety.
(c)
To determine
To explain:About the explanatory variable and response variable of the study of brain activity in response to the images versus reward sensitivity of subjects.
(d)
To determine
To explain:About the explanatory variable and response variable in the study of the relationship between growth of cancer tumors versus the dose of endostatin which injected to mice daily.
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A study claims that the combination of vitamin C with vitamin E is more effective for preventing the flu than vitamin C alone. In the study, a group of researchers studied 1132 subjects. The subjects were randomly assigned to out of three study groups. The first group of 310 subjects were instructed to take 600 mg daily of vitamin C. The second group of 418 subjects were instructed to take 600 mg of vitamin C and 200 IU of vitamin E daily. The third group of 404 subjects were instructed to take 600 mg of vitamin C and 400 IU of vitamin E daily. The incidence of flu over a season was recorded. All subjects knew which treatment they were receiving.This study is
double-blind
not an experiment
blind, but not double-blind
not blind.
none of the above
A study claims that the combination of vitamin C with vitamin E is more effective for preventing the
flu than vitamin C alone. In the study, a group of researchers studied 1132 subjects. The subjects
were randomly assigned to out of three study groups. The first group of 310 subjects were
instructed to take 600 mg daily of vitamin C. The second group of 418 subjects were instructed to
take 600 mg of vitamin C and 200 IU of vitamin E daily. The third group of 404 subjects were
instructed to take 600 mg of vitamin C and 400 IU of vitamin E daily. The incidence of flu over a
season was recorded. All subjects knew which treatment they were receiving.
In this study, which is the control group?
O the third group of 404 taking 400 IU of vitamin E
O the 1132 subjects
O the first group of 310 taking vitamin C alone
O the second group of 418 taking 20O IU of vitamin E
O There is no control group.
This study is
O double-blind
Onot blind.
O not an experiment
blind, but not double-blind
none of the…
A study claims that the combination of vitamin C with vitamin E is more effective for preventing the flu than vitamin C alone. In the study, a group of researchers studied 1132 subjects. The subjects were randomly assigned to out of three study groups. The first group of 310 subjects were instructed to take 600 mg daily of vitamin C. The second group of 418 subjects were instructed to take 600 mg of vitamin C and 200 IU of vitamin E daily. The third group of 404 subjects were instructed to take 600 mg of vitamin C and 400 IU of vitamin E daily. The incidence of flu over a season was recorded. All subjects knew which treatment they were receiving.In this study, which is the control group?
the second group of 418 taking 200 IU of vitamin E
the third group of 404 taking 400 IU of vitamin E
the 1132 subjects
the first group of 310 taking vitamin C alone
There is no control group.
Chapter 1 Solutions
The Analysis of Biological Data
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