Suppose a small business owner tracks spending of their customers over time. To simplify her data, she aggregates the data to show spending totals by year. Currently will do her analysis based on two years of data: 2022 and 2023; every customer in the data set has a spending total for 2022 and a spending total for 2023. What method would she use to determine if there is a statistically significant difference in the average amount of customer spending when comparing 2022 with 2023 (when controlling for individual variability)? Question 23 options: Independent t-test. Paired t-test. Neither of the above