Sunlight is believed to influence the weight of the endangered sunbathing dwarf-kangaroo data: (Macropus soliminimus). In an effort to test the validity of this claim you collect the following Lives in direct sunlight Lives in shade Sample Kangaroo weight (kg) Sample Kangaroo weight (kg) A 12 4 13 B 10 B 14 C 11 C 16 D 10 D 12 E 13 E 11 F 12 F 17 G 11 G 13 What is the appropriate statistical test for these data? a) chi-square test for goodness of fit b) chi-squared test for contingency table analysis c) two-sample t-test d) two-sample z-test e) test of variance The number of degrees of freedom is a) 1 b) 7 (C) 12 d) 14 e) 16 Assuming a = 0.05, what is the critical value for this test? a) 2.977 b) 2.131 2.179 3.055 e) 2.145