What is the next step in an experiment if the results of an independent samples t-test are ...

What is the next step in an experiment if the results of an independent samples t-test are statistically significant?
 
  a. Correlate the scores on the dependent variable with the conditions of the independent variable.
  b. Compute a predicted score for each true score on the dependent variable.
  c. Make a prediction about the strength of the relationship based on the scatterplot.
  d. Compute a confidence interval for the difference between the s.

Question 2

What are we stating if we reject the null hypothesis in an independent samples t-test?
 
  a. The sample mean difference represents no difference between two population s.
  b. The sample mean difference represents a difference between two population s that is significantly different from zero.
  c. The sample mean difference is zero.
  d. The difference between the population means is zero.