1. You want to know if amount of rain a plant receives (measured in ml) causes trees to grow taller (measured in cm). If data meet test assumptions, what statistical test will you use?

2. You want to look at the influence of iron on weight in rats. You have 100 rats from the field. For each rat you measure iron content in the blood (mg/ml) and rat weight (gm). Is there an association? If data do not meet test assumptions you will analyze using a:

Answer options for these questions:

Paired t-test Chi Square Test of Homogeneity t-test for Correlation ANOVA Mann Whitney U Test t-test for Regression Chi Square Test of Association (or Independence) 2 Population Sign Test 2 sample t-test Chi Square Goodness of Fit Test Spearman's Rank Test