1. In a matched pairs experiment, what is computed for each pair of individuals?
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Question
1. In a matched pairs experiment, what is computed for each pair of individuals? The product of their measurements The difference between their measurements The sum of their measurements 2. True or false: Matched pairs data can be analyzed with a one-sample t procedure because it is one sample of differences. True False 3. What do we use as a point estimate for µ1 – µ2 in a confidence interval? xbar1-xbar2 xbar1+xbar2 1 0 4. If µ1 = µ2, what does µ1 – µ2 equal? 0 1 10 unknown 5. On the basis of the interval estimate for µd, namely (3.87, 22.77), can we conclude that µd differs from zero? Yes Can't be determined No 6. Suppose you wish to use the two-sample t procedures to compare two population means, but know that the population distributions are skewed. What sample size is needed in order for the results to be accurate? n1 + n2 is at least 40 Either n1 is at least 40 or n2 is at least 40, but not both Both n1 and n2 are at least 40 Any size sample is fine, due the to Central Limit Theorem 7. In a two-sample problem, the responses in the two samples are assumed to be matched correlated independent categorical 1. In a matched pairs experiment, what is computed for each pair of individuals? The product of their measurements The difference between their measurements The sum of their measurementsExplanation / Answer
1) The difference between their measurements
2) False. It is Two Sample t test
3) xbar1-xbar2. Option A
4) 0
5) Yes. Because it don't include zero
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