Mathematics, 15.10.2020 09:01, SoccerHalo
Neuroscientists conducted research in a Canadian prison to see whether solitary confinement affects brain wave activity. They randomly assigned 20 inmates to two groups, assigning half to solitary confinement and the other half to regular confinement. The data follow:
Nonconfined Confined
10.7 9.6
10.7 10.4
10.4 9.7
10.9 10.3
10.5 9.2
10.3 9.3
9.6 9.9
11.1 9.5
11.2 9.0
10.4 10.9
Required:
a. Explain why a paired t-test is not appropriate for testing whether the mean alpha wave frequencies are the same in the two groups.
b. Then perform the appropriate test assuming equal variance.
Answers: 3
Mathematics, 21.06.2019 16:10, deannabrown2293
The box plot shows the number of raisins found in sample boxes from brand c and from brand d. each box weighs the same. what could you infer by comparing the range of the data for each brand? a) a box of raisins from either brand has about 28 raisins. b) the number of raisins in boxes from brand c varies more than boxes from brand d. c) the number of raisins in boxes from brand d varies more than boxes from brand c. d) the number of raisins in boxes from either brand varies about the same.
Answers: 2
Neuroscientists conducted research in a Canadian prison to see whether solitary confinement affects...
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