What is the difference between the null and alternative hypotheses statements in one tailed and two tailed tests? What are significance/alpha levels and how does using a one versus a two tailed test affect significance levels? Provide an example of a research study that would use one particular significance level over another, please explain why you choose that particular alpha/significance level and provide the researchers hypothesis using the null and alternative too.

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What is the difference between the null and alternative hypotheses statements in one tailed and two tailed tests? What are significance/alpha levels and how does using a one versus a two tailed test affect significance levels? Provide an example of a research study that would use one particular significance level over another, please explain why you choose that particular alpha/significance level and provide the researchers hypothesis using the null and alternative too.

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