Suppose we have data from 20 stores: their revenue in November 2021 and their revenue in November 2022. We wish to determine if there has been a statistically significant change in revenue when comparing November 2021 and November 2022 (after controlling for individual variability between stores). What method can we use? Question 3 options: We are not allowed to use any form of t-test in this situation. Paired t-test Independent t-test