You wish to compute the 95% confidence interval for a sample with a df of 80. Using interpolation, determine the tcrit that you should use.
Answer to relevant QuestionsIn a two-tailed test, N is 35. (a) Is the tobt of +2.019 significant? (b) Is the tobt of +4.0 significant? (a) Study A reports a result with p = .031. Study B reports results with p < .001. What is the difference between the results of A and B in terms of (a) how significant they are? (b) Their critical values? (c) Their region ...Say that you have a sample mean of 44 in a study. (a) Estimate the corresponding µ using point estimation. (b) What would a confidence interval for this µ tell you? (c) Why is computing a confidence interval better than ...We predict that children exhibit more aggressive acts after watching a violent television show. The scores for ten participants before and after watching the show are (a) Subtracting before from after, what are H0 and ...In recent chapters, you have learned about three different versions of a confidence interval. (a) What are they called? (b) How are all three similar in terms of what they communicate? (c) What are the differences between ...
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