Proportion treatment proportion treatment

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QUESTION 1

QUESTION 2

1. Researchers want to compare the leaning made in statistics at Otterbein University in Allied Health by comparing the results of an early pre-test and a end of term post-test.  They will either use an independent two-sample t-test or a paired t-test.  The correct approach would be a paired t-test.

1. This compares twins and involves pairing the twins together.  The second twin (variable name ends in 2 rather than 1) is the heavier smoker.  Analyze this with the first twin minus the second twin.  The two variables are ls1 and ls2.  For bone density in the Lumbar spine (g/cm**2) assess Ho using the paired t-test: no difference in bone density means vs. Ha: twin 1 mean is different than the mean of twin 2.  What is the p-value? 

2 points   

QUESTION 5

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