UH MyUH Services | All Campuses x Laulima : Home : Overview x Laulima : Home : Membership X My Home X My Home "* Midterm 3 Fall 2021 - ECON 32 x G midterm 3 uh manoa econ 321 x C D webassign.net/web/Student/Assignment-Responses/last?dep=28075575 DETAILS MY NOTES A sample is obtained from a population with # = 50 and o = 8. Which of the following samples would produce the sample mean with the least extreme z-score (closest to zero)? a sample of n = 16 scores with x = 54 O a sample of n = 4 scores with x = 54 O a sample of n = 4 scores with x = 52 O a sample of n = 16 scores with x = 52 5. DETAILS MY NOTES What is the critical value from the t-distribution (with 15 degrees of freedom) for 90% confidence? O 1.753 O 2.131 O 1.645 O 1.761 6. DETAILS MY NOTES You are interested in the average age of people living in a particular state. You survey a random sample of 2500 people from this population and record their age. You calculate a sample mean of 35 and sample standard deviation of 10. a. What is the point estimate for the population mean age in this state? Find a 95% confidence interval for the population mean age by answering the following questions. b. What is the critical value? (Use the t table to obtain the critical value and enter the exact answer). c. What is the standard error? Round to two decimal places. d. What is the 95% confidence interval? Round to two decimal places. ( Optional: For partial credit, show your work by typing in the calculations used to obtain the numbers above