Comparing two groups
12 important questions on Comparing two groups
What is a binary variable?
How do we call the category of statistical methods used when we have two variables?
What are the assumptions for comparing groups on making a confidence interval?
- independent random samples
- approximately normal distribution for each group
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How do you find df in a comparing groups confidence interval?
How do you interpret a confidence interval of (4,1-5,7) when you compared two groups?
What does it mean when two samples are dependent?
What can we interpret from a positive confidence interval interval (x;y)?
- the p1, or U1 would be between x and y higher than p2 or U2
- p1 or U1 is higher than p2 or U2.
How do we calculate the ratio of proportions?
What does the ratio of proportions tell us?
What are dependent samples?
How do we call the observations in dependent samples?
What do we use when we want to calculate significance in dependent sample while using one-sample methods?
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