The F-statistic used for testing H0: σ12 = σ22 against Ha: σ12 < σ22 is F = (s1)2/(s2)2.
Answer to relevant QuestionsUse Tables VIII, IX, X, and XI of Appendix A to find each of the following F -values: a. F.05, where v1 = 8 and v2 = 5 b. F.01, where v1 = 20 and v2 = 14 c. F.025, where v1 = 10 and v2 = 5 d. F.10, where v1 = 20 and v2 = 5 Refer to the Journal of Biogeography (Dec. 2003) study of ants in Mongolia (central Asia), presented in Exercise, in which you compared the mean number of ants at two desert sites. Since the sample sizes were small, the ...A study published in the Journal of American Academy of Business, Cambridge (March 2002) examined whether the perception of the quality of service at five-star hotels in Jamaica differed by gender. Hotel guests were randomly ...Swim maze study. Merck Research Labs used the single-T swim maze to conduct an experiment to evaluate the effect of a new drug. Nineteen impregnated dam rats were allocated a dosage of 12.5 milligrams of the drug. One male ...Assume that σ12 = σ22 = σ2. Calculate the pooled estimator of σ2 for each of the following cases: a. s12 = 200, s22 = 180, n1 = n2 = 25 b. s12 = 25, s22 = 40, n1 = 20, n2 = 10 c. s12 = .20, s22 = .30, n1 = 8, n2 = 12 d. ...
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