state whether dependant or independent analysis and give reasoning: a) a hypothe
ID: 3135305 • Letter: S
Question
state whether dependant or independent analysis and give reasoning: a) a hypothesis of ongoing clinical interest is that vitamin c prevents the common cold. in a study involving 20 volunteers, 10 are randomly assigned to receive vitamin c capsules and 10 are randomly assigned to receive placebo. the # of colds over a 12 month period is recorded. b)a topic of current interest in ophthamology is whether or not sperical refraction is different between tge left and right eyes. to examine this issue, refractionis measured in both eyes of 17 people. c)in order to compare the working enviroment in offices where smoking is permitted with that in offices where smoking was not permitted, measurements were made at 2pm in 40 work areas where smoking was permitted and 40 work areas was not permitted
Explanation / Answer
state whether dependent or independent analysis and give reasoning:
a) a hypothesis of ongoing clinical interest is that vitamin c prevents the common cold. in a study involving 20 volunteers, 10 are randomly assigned to receive vitamin c capsules and 10 are randomly assigned to receive placebo. the # of colds over a 12 month period is recorded.
Independent analysis.
10 are randomly assigned to receive vitamin c are independent group and receiving placebo are different sample.
b)a topic of current interest in ophthamology is whether or not sperical refraction is different between tge left and right eyes. to examine this issue, refractionis measured in both eyes of 17 people.
dependent analysis.
The sample are paired be left and right eyes.
c)in order to compare the working enviroment in offices where smoking is permitted with that in offices where smoking was not permitted, measurements were made at 2pm in 40 work areas where smoking was permitted and 40 work areas was not permitted
Independent analysis.
Two independent groups, smoking permitted and smoking was not permitted are studied.
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