Suppose we want to know whether students feel more stressed at the beginning of the semester or at the end of the semester. We take a random sample of students. Midway through the first week of classes, we ask the students to rate their current stress level on a scale from 0 (completely relaxed) to 100 (completely stressed out). Midway through the last week of classes, we ask the same students to rate their current stress level using the same 0 to 100 scale. Which inferential statistical test would we use to determine whether there is a statistically significant difference between stress levels at the two time points? A) independent-samples t test / two-sample t test B) dependent-samples t test / matched-pairs t test / related-samples t test / paired t test C) chi-square D) one-way ANOVA E) factorial ANOVA