Use the boxplot to assess the sample size condition required to construct a two sample t confidence interval and to perform a two sample t test for the difference in population means. What is the purpose of using a boxplot in this context?
1) To visualize the distribution of the data in each sample
2) To calculate the mean and standard deviation of each sample
3) To determine the sample size needed for a desired level of confidence
4) To compare the means of the two samples
