58t dlierence between means: the t-test Be sure to ref exercise r to pages 7-12

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58t dlierence between means: the t-test Be sure to ref exercise r to pages 7-12 in the manual as you work through the questions in this In Figure 2 (page 8 of your lab text), two sampl the left, the two samples were drawn from a population with a large standard deviation. On the right, the samples were drawn from a population with a small standard deviation. In both cases the differences between the sample means (XI- X2) are the same. Does it seem likely that we would draw samples with the same difference in sample means from these two populations? What do you think? les were drawn from each of two populations. On BBio180, University of Washington, Bothell Revised Winter 2018 being different due to chance. Constaer riguretoerow Number of individuals 40 50 30 R1 R1 %2 Samples Number of individuals 40 Figure 2: Two samples drawn from each of two populations. The two populations have the same mean but different standard deviations. In Figure 2, two samples were drawn from each of two populations. On the left, two samples were drawn from a population which has a large standard deviation. On the right, samples were drawn from a population with a small standard deviation. In both cases the

Explanation / Answer

Answer:

It is not likely that the difference of sample means are same for the two populations in different samples. In the long run, we would get small mean difference for the small standard deviation population and large mean difference for the large standard deviation population.

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