Question

Part B The situation is as follows: With the cost of attendance rising, BYU administrators are worried that BYU students are graduating with more and more debt. In a random sample of 312 BYU undergraduate students who graduated in April 2019, 145 of them reported having student debt. Calculate a 98% confidence interval estimate for the proportion of BYU undergraduate students who graduated in April 2019 who have student debt. SHOW YOUR WORK IN ALL THE STEPS. ANSWERS WITHOUT SOLUTIONS WILL ONLY GET PARTIAL CREDIT. As an example, if you were to take the square root of (2+2) / 3, please write it as sqrt((2+2)/3) when showing work.

9. State the name of the appropriate estimation procedure (e.g. one-sample t confidence interval for estimating the mean difference). (1 pt) (Note) You have already described the parameter being estimated in part A, so you don't have to repeat it here.

10. You have already listed the conditions, now check the condition for the normality of the sampling distribution of p-hat for confidence interval estimation. (1 pt.)

11. Write down the confidence level and the z* critical value. (2 pts.)

12. Calculate the confidence interval in interval form. Be sure to show your work. Round your final answer for the lower and upper limits to three decimal places. (2 pts)

13. Interpret your confidence interval in context. Do this by including these three parts in your conclusion (3 pts): Level of confidence Parameter of interest in context The interval estimate

Answer 1