Mathematics, 01.07.2020 15:01 eg112105
For each of the following situations, state whether the appropriate test would be a Independent Samples T test or Paired T Test, assuming the conditions are met to run these tests. Give the null and alternate hypotheses that would be used to test the claim using mathematical notation.
Suppose you want to test your theory that "taking Aspirin regularly reduces blood pressure". To investigate your claim, you find 40 identical twin pairs (80 people) willing to participate in your study. You randomly assign one member of each pair to take aspirin every day for 2 months, and the other to take a placebo every day for 2 months. After 2 months, you measure the blood pressure of all 80 people. For each twin pair, you then compute the difference in blood pressure between treatments, calculated as the blood pressure of the twin taking the aspirin the blood pressure of the twin taking the placebo.
Which test is appropriate?
A. Independent Samples T Test
B. Paired T Test
What are the appropriate hypotheses?
A. H0: μaspirin - μplacebo = 0 and Ha: μaspirin - μplacebo > 0
B. H0: μd = 0 and Ha: μd < 0 where μd= mean difference in blood pressure (calculated as aspirin - placebo)
Answers: 2
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For each of the following situations, state whether the appropriate test would be a Independent Samp...
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