Directions for questions 4 & 5: We selected a random sample of 100 GeoGebraU students, 67 females and 33 males, and analyzed their responses to the question, "What is the total amount (in dollars) of credit card debt you have accrued to date?" With more than 30 in each random and independent sample, conditions are met for modeling the distribution of differences in sample means using a T-model. Therefore, we will proceed with finding a confidence interval to estimate the gender difference in credit card debt for GeoGebraU students. Summary statistics for CC Debt: Group by: Gender Gender Mean Std. dev. n Female 2577.75 1916.29 67 Male 3809.42 2379.47 33 to find the 95% confidence interval estimating the difference 1 - 2, where 1 is the mean credit card debt for all female GeoGebraU students and 2 is the mean credit card debt for all male GeoGebraU students. Since the numbers are dollars, round to two decimal places when you enter your answer. Flag question: Question 4 Question 4 2 pts The lower limit on the confidence interval is Flag question: Question 5 Question 5 2 pts The upper limit on the confidence interval is