Question: Can we use a confidence interval to determine whether we would reject a null hypothesized parameter at a certain significance level? The answer should address

Can we use a confidence interval to determine whether we would reject a null hypothesized parameter at a certain significance level? The answer should address the following:

What is the relationship between the significance level () of the test and the confidence level of the interval you would create?

What is the relationship between whether a hypothesis test is done directionally and the type of interval I create?

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