Help me. Clear problem with steps please

Technology/Calc section (using the TI, No charts) questions 4-9 If it applies, in this section assume the conditions for the CLT are met. You might need to do some very minor calculations by hand before using the calc. Show what you did on the calc. 4. In a simple random sample of 1200 Americans age 20 and over, the proportion with diabetes was found to be 11.5%. (6 pts) a) Report the 95% confidence interval for the proportion of all Americans age 20 and over with diabetes. What did you use and type in on the TI (type it on the exam)? There is no need to interpret the CI on this question since I will have you interpret a Cl on a different question. b) According to the Centers for Disease Control and Prevention, nationally, 10.7% of all Americans age 20 or over have diabetes. Does the confidence interval you found in part a) support or refute this claim? Explain. Edit View Insert Format Tools Table 12pt ~ Paragraph|B I U A 3 2