Evaluate the following statement- A high r2 means a significant regression.
1. Merely if the sample size is large enough. The t statistic must be consulted to determine if the population regression line slope is considerably different from zero.
2. Merely if the sample size is small enough. The t statistic must be consulted to determine if the population regression line slope is considerably different from zero.
3. Only if the sample size is large enough. The f statistic must be consulted to determine if the population regression line slope is significantly different from zero.
4. Only if the sample size is large enough. The t statistic must be consulted to determine if the population regression line slope is significantly greater than zero