or each of the situations below, name the statistical test that you would use to analyze the data. It is possible that some test may be used more than once, or not at all. Options: one-sample z, two-sample z, one-sample independent-measures t, one-sample repeated-measures t,one-way independent-measures ANOVA, one-way repeated-measures ANOVA, two-way independent-measures ANOVA,Pearson correlation, Spearman correlation, point-biserial correlation, simple regression, multiple regression,chi-square for independence, chi-square for goodness-of-fit, binomial,Wilcoxon Rank Sums test, Wilcoxon Signed Rank T, Mann-Whitney U, Kruskal-Wallace H, Friedman chi-square1. __________________________________________ A retailer wants to confirm the popular belief that sales are higher during the Xmas season. He visits every store in the mall and collects data on 1st, 2nd, 3rd, and 4th quarter earnings.2. __________________________________________ (see problem 1) A retailer in another community wants to repeat the study, but this community is more conservative, and businesses don=t want to give out their earnings data. They are, however, willing to rank order how profitable each quarter was (for example, the clothing store says that 4th quarter was best, 2nd was next, followed by 1st, with 3rd quarter showing a dip in sales).3. __________________________________________ A physician collects data on the birthweight of 5 newborn children for smoking and non-smoking mothers.4. __________________________________________ (see problem 3) What statistic should the physician use if data is collected for 100 children, assuming that birthweight is a variable that is positively skewed?5. __________________________________________ Some KWU professors are concerned that courses transferred from community colleges might not be as rigorous as courses offered at KWU. To assist with transfer credit decisions, Prof. Hoekstra is also asked to compare the CAAP writing skills scores of students who took Composition at Wesleyan to those of students who transferred in their Composition credit.6. __________________________________________ (see problem 5) In addition to a comparison between groups to determine if transfers and non-transfers are different, Prof. Hoekstra would also like to calculate a statistic which shows the degree of relationship between writing skills score and whether someone transferred or not.7. __________________________________________ A genetic scientist plants 1acre each of four different corn hybrids and compares the yield at the end of the growing season.8. __________________________________________ Davis (1937) found that single children developed language skills faster than twins and that twins developed language faster than triplets. A researcher tries to confirm this finding by observing children (10 single children, 10 twins, and 10 triplets, all 24mo. old) in a day care. All children are rank ordered in terms of their verbal skills.9. __________________________________________ A fitness director wants to check that her exercise regimen is successful. She checks resting heart rate for 20 individuals prior to initiating her program, and again after a year of being on the program. 10. __________________________________________ We expect the weather to be average, but living in Kansas we know that temperatures can sometimes be above average and sometimes below average. A Topeka meteorologist reports that 22 days in April were above average. Was this an abnormally warm April?
or each of the situations below, name the statistical test that you would use to analyze the data. It is possible that some test may be used more than once, or not at all. Options: one-sample z, two-sample z, one-sample independent-measures t, one-sample repeated-measures t,one-way independent-measures ANOVA, one-way repeated-measures ANOVA, two-way independent-measures ANOVA,Pearson
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