Tides are free waves because they are not maintained by a disturbing force
a. True
b. False
False
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Ocean temperatures are typically recorded at the deepest points in the ocean
Indicate whether the statement is true or false
Describe how glaciers erode rock and carry sediment
What will be an ideal response?
We can calculate the F statistic as follows BSS = 5 * (7.6 - 6.7)2 + 5 * (6.0 - 6.7)2 + 5 * (6.64 - 6.7)2 = 6.5 WSS = (5 - 1)*1.12 + (5 - 1)*0.82 + (5 - 1)*0.62 = 8.8 F = (BSS / (k-1)) / (WSS / (n-k)) = (6.5 / 2) / (8.8 / 12) = 4.43 Similarly, the KW statistic is given by summing the ranks of the different groups, so that we get H = (12/(n(n+1)) sum{i=1->k} Ri 2 / ni) - 3(n+1) = (12/(15(15+1)) sum{i=1->k} Ri 2 / ni) - 3(15+1) = 0.05 (572/5 + 232/5 + 402/5) - 48 = 5.78 Thus, comparing F with F.05,2,12 = 3.89, the critical value leads us to reject the null hypothesis. Comparing H with the chi-squared2 = 5.991, so that we fail to reject the null hypothesis. Sometimes the lack of power associated with a nonparametric test prevents us from rejecting the null hypothesis.
a. Consider the post hoc contrasts between the different groups. Do any groups stand out?
b. Using the results from part (a), test the hypothesis that mean test score of one group differs from those of the other two.
Which of the following was not a mobile belt affecting the North American continent during the
Early Paleozoic? a. Franklin d. Ouachita b. Cordilleran e. Appalachian c. Hercynian