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# Statistics: Research Hypothesis

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I need help with the following questions regarding the research hypothesis:
(All data has already been entered onto attachment.)

a) Identify and test the research hypothesis at the .05 level of significance that boys raise their hands in class more often than girls. Remember to first decide whether this is a one- or two-tailed test. What is your conclusion regarding the research hypothesis?

b) Test the research hypothesis at the .01 level of significance that there is a difference between boys and girls in the number of times they raise their hands in class. What is your conclusion regarding the research hypothesis?

c) You used the same data for both parts a and b, but you have a different hypothesis (one is directional and the other is non-directional). How do the results differ and why?

https://brainmass.com/statistics/hypothesis-testing/statistics-research-hypothesis-524809

#### Solution Preview

Hi there,

Thanks for letting me work on your post. Here are my explanations to your questions regarding the research hypothesis:

a)
First, based on the claim, it is a one-tailed test. Furthermore, based on the test for the variance, P value is 0.495. therefore, we should consider t-test assuming equal ...

#### Solution Summary

The expert identifies and tests the research hypothesis at levels of significance.

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