Part 1: Fill in the Blank

1) If there is absolutely no relationship between two variables, Pearson's r will equal ________.

2) What is the range of values for a coefficient of correlation?

3) If the correlation between two variables is close to one, the association between the variables is________.

4) If the sample correlation coefficient, r, is -0.96, the dependent variable ________ as the independent variable increases.

5) Perfect correlation means that the scatter diagram will appear as a(n) ________.

6) The ________ method determines the equation of a line that minimizes the sum of the squares of the vertical deviations about the line.

7) If the slope of a regression line is zero, the orientation of the regression line is ________, which indicates a lack of a relationship.

8) For an inverse relationship between two variables, the sign of the correlation coefficient is ________.

9) Approximately ________% of the observations lies within two standard errors of the regression line.

10) If we reject the null hypothesis, H 0: = 0, what can we conclude about the population correlation coefficient?