True or False IVE ASKED THESE BEFORE AND SOMEONE POSTED THE

True or False: I\'VE ASKED THESE BEFORE AND SOMEONE POSTED THE RANDOM/INCORRECT ANSWERS. PLEASE ONLY ANSWER IF YOU ARE SURE OF YOUR ANSWERS.

1. For correlation, the data need to be normally distributed in both the vertical and horizontal directions to meet assumptions for the statistical analysis

2. If x and y are highly correlated, then x is said to cause y to occur

3. For correlation, we will test the null hypothesis that the slope relating the dependent variables as a function of the independent variable is equal to zero

4. If you find that there is a significant correlation between 2 variables, you will report that p<0.05 in your conclusion statement (statistical evidence)

5. For nonparametric tests covered in this class, instead of examining the actual values in a data set, the relative position or direction of those values is compared instead.

6. Nonparametic statistical tests have no assumptions about how the data are collected

7. For the Mann Whitney U Test and Spearman\'s Rank correlation, the analysis is on the ranks of the data instead of the actual values in the data set

8. For the 1 and 2 population sign tests, the analysis is on whether the data are positive, negative or zero instead of the actual values in the data set

9. For the nonparametric tests discussed in this class, parameteric tests always have greater statistical power than nonparametric tests

Solution

1. True.

2. False.

3. False.

4. True.

5. True.

6. True.

7. True.

8. False.

9. True.