Useful practice problems for Q11Q13 are: 7.28,7.30,7.31,&7.36 11. Which hypothesis test is the most appropriate to determine whether the average of actual charges is different for males than females? "HINT" - REMEMBER TO USE A LEVEL OF SIGNIFICANCE OF 0.05 , IF IT IS NEEOED. a. Two-sample Z-test (two-tailed) b. Two-sample poired T-test (two-talled) c. Two-sample T-test assuming equal variances (two-toiled) d. Two-sample T-test assuming unequal variances (two-tailed) e. Two-Sample F-test for equal variances Homework \#1 - Hypothesis Testing OBA312 - Spring 2023 12. Organize the data as necessary and use the automated analysis tools in Excel to execute the test from Q11. What is the p-Value? "HINT"-RECAUL REORGANIZING THE OATA CAN aE DONE ar: (1) SORTING THE OATA AND COPY/PASTING CAREFULYY OR (2) SORTING ANO ADOING A FORMULA TO SUCCESSIVELY COUNT OBSERVATIONS WITHIN EACH SEX AND THEN USE A PIVOT TABLE TO RE-STRUCTURE THE OATA INTO THE FORMAT WE NEED. 13. Based on the result of Q12, and assuming alpha =0.05, what is your conclusion in English? a. Males and females have significantly different average charges. b. Males and females do not have significantly different average charges