Solve the problem. Round the point estimate to the nearest thousandth. Find the point estimate of the proportion of people who wear hearing aids if, in a random sample of 898 people, 46 people had hearing aids. O a. 0.049 O b. 0.051 O c. 0.050 Q d. 0.949 Solve the problem. A student earned grades of A, C, A, A, and B. Those courses had these corresponding numbers of credit hours: 1, 6, 3, 1, 3. The grading system assigns quality points to letter grades as follows: A = 4, B = 3, C = 2, D =1, and F = 0. Compute the grade point average (GPA) and round the result to two decimal places. 0 a. 1.93 O b. 8.20 O c. 3.93 0 d. 2.93 Solve the problem. According to a college survey, 22% of all students work full time. Find the mean for the number of students who work full time in samples of size 16. O a. 0.2 O b. 2.8 O C. 4.0 0 d. 3.5 Solve the problem. The organizer of a television show must select 5 participants from a list of 30 people who have written in to the show. What is the probability that the 5 youngest people will be selected? 0 a. 1/142,506 O b. 1/17,100,720 O c. 4/15 0 d. 1/120 Solve the problem. The weights of the sh in a certain lake are normally distributed with a mean of 17 lb and a standard deviation of 6. If 4 sh are randomly selected, what is the probability that the mean weight will be between 14.6 and 20.6 lb? 0 a. 0.0968 0 b. 0.6731 0 6. 0.3270 0 d. 0.4032 0 9. 0.3812