For n = 10, 20, and 30, find the .05 and .01 critical values for a two-sided signed rank test from the tables and then by using the normal approximation. Compare the values.

Chapter 5 Bivariate Data two variables for on individual to find a relationship between one another When analyzing describe each variable and describe the relationship Explanatory variable X, used to predict, independent Response variable Y, dependent Scatterplot the variables measured by the same individual Linear relationship straight line Nonlinear relationship a relationship but not at all a straight line Positive Y increases as x increases Negative Y decreases as x increases Correlation Coefficient calculate r, measures the strength of the linear relationship, strength plus the direction the graph is going Cross Product Sxy the sum of the relationship, when the variables are not related, or when both have a positive or negative relationship How outlier