True or False

7. The statistical null hypothesis for 1-way ANOVA is that the means of the measurement variable are the different for the different categories of data.

8. The null hypothesis of correlation/linear regression is that the slope of the best-fit line is equal to zero.

9. With paired t-test, the most common research design is that one grouping represents individual organisms, while the other is "before" and "after" some treatment.

10. There is no such thing as 3-way ANOVA or any other higher order ANOVAs with more groupings.

11. When a 1-way ANOVA has a balanced design, it is not very sensitive to different standard deviations in the different groups.

12. Paired t-test is the same as 2-way ANOVA without replication, where one grouping has paired values.