Is it acceptable practice to look at your research results, note the direction o

Question

Is it acceptable practice to look at your research results, note the direction of the difference, and then make the alternative hypothesis one-sided in order to achieve a significant difference? Explain. Choose the correct answer below O A. Yes. The alternative hypothesis must be as accurate as possible O B. Yes. This is only unacceptable when changing from a one-sided alternative hypothesis to a two-sided hypothesis ° C. No. Changing the alternative hypothesis is considered cheating 0 D. No. This is only acceptable when changing from a one-sided alternative hypothesis to a two-sided hypothesis

Explanation / Answer

Alternative hypothesis is set at the beginning of testing.

So we can't change it after looking at our research results.

Hence option C is correct

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