1 answer

How to determine what confidence level to use when constructing a confidence interval for a 2 sample t test?

Question:

how to determine what confidence level to use when constructing a confidence interval for a 2 sample t test?


Answers

In the question of the 2 sample t-test, you will be provided with the information that you have to construct, say, 95% confidence interval. So for this question, the level of confidence would be 95/100 = 0.95 and the level of significance (\alpha) will 1 - 0.95 = 0.05.

The level of significance value can then be used to calculate the critical value in the "margin of error" part of the confidence interval.

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