Posted by Stanley on Tuesday, January 29, 2013 at 12:16pm.
Which of the following conditions doesn't need to be met before you can use a twosample procedure?
The responses in each group are independent of each other.
Each group is considered to be a sample from a distinct population.
The same variable is measured in both samples.
The goal is to compare the means of the two groups.
Data in two samples are matched together in pairs that are compared.

Which of the following statements is false?
I. We use onesample procedures when our samples are equal in size but aren't independent.
II. Everything else being equal, a confidence interval based on 15 degrees of freedom will be narrower than one based on 10 degrees of freedom.
III. The samples used in all twosample procedures must be of the same size.
I only
II only
III only
I and III only
None of the above gives the correct response.

Statistics  Anonymous, Wednesday, May 13, 2015 at 12:16pm
3 only
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