Question

41. Which of the following Pearson correlation coefficients indicates the greatest association between two groups of vegetables? a. 0.0 b. 0.1 c. 0.2 d. 0.5 e. 0.8 42. Given the following data: 1 4 2 2 3 3 y: 1 4 Find: (Exy)(Ex2)(Ex) a. 9000 b. 70 c. 6000 d. 600 e. 27,000 43. How do a binomial distribution and a multinomial experiment differ? a. by the number of trials b. by the number of categories used c. by the independence of the trials d. choices "a" and "c" are correct e. choices "b" and "c" are correct 44. Which method would be used to test the equality of four population means of trees by analyzing sample variances? a. Pearson Test b. F Test C. ANOVA d. Chi Square Test e. Wilcoxon Rank Sum Test 45. One advantage a Nonparametric test has over a Parametric test is that a Nonparametric test a. uses large sample sizes b. uses complex equations c. does not require a particular distribution d. choices “a” and “c” are correct e. choices "b" and "c" are correct 46. If you plan to do statistical analysis on five groups of fish, which test would be best to use? a. t-Test b. Rank Sum Test c. F Test d. ANOVA e. None of these, some other test. 47. What building did our class meet in this semester before we went to distance learning? a. T4 b. T2 d.M e. None of these 48. A regression equation describing the relationship between sunlight and plant growth would result in a a. parabola b. circle c. line d. ellipse e. toroid C. B e. at 49. Which piece of information is most useful when trying to determine how widely distributed a set of biological data are? a. mean b. standard deviation c. mode d. median 50. If you are using a Chi-Square test, which test would you use to see if two populations had the same distribution? a. Goodness-of-Fit b. Test of Independence c. Test of Homogeneity d. Blood Test 51. In a Chi-Square Test, if the test statistic falls in the critical region, then you would: a. accept Ho b. reject Ho c. reject Ha d. accept Ho and Ha 52. In a Chi Square Test, what is another name for the "expected" values? a. observed b. calculated c. theoretical d. unknown

Answer 1

41 Question which of the following Peas son correlation coefficients indicates the greatest association between two groups of vegetables ? Correct Answer is (e) Answer Cor(x,y) Jvar (*) Ivar () Pearson correlation coefficient; lxy and -12 dnych Total al 1 2 3 4 Question 42 y 2 - 4 3 10 4 g 16 xy II 30 {x=10, Ey=10, Exy=30, {x²=30, (EXY)(x)(Ex) = (30) (30)(10) 9000 correct Answer is (a) - x2 4 9 16 30 Answer