An estimated 1 million people in CountryX have advanced bad breath syndrome (ABBS). 100 patients were...
An estimated 1 million people in CountryX have advanced bad breath syndrome (ABBS). 100 patients were assigned randomly into two groups of 50 patients to receive either DrugA or a placebo. No patients within either group showed improvement in ABBS. It was concluded that DrugA was not effective in the treatment of ABBS. Is it reasonable for the researchers to conclude that DrugA is not effective in treating ABBS?
A. No; confounding variables can have an effect
B. Yes; random assignment was used
C. Yes; sample size was large
D. No; sample size is not large enough (only 50/group)
I'm thinking the answer would be D or A, but am leaning more towards D. Any help is appreciated.
Homework Answers
Yeah Answer is D since the minimum statistically significant sample size is 100. So here we need to consider 200 in total and 100 each in two groups DrugA and placebo.
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