QUESTION 7 In a sample of 500 nursing application, there are 60 men. The Dean wants to construct a 90% confidence interval of the true proportion of men who applies to the nursing programme. Calculate the 90% confidence interval. O a. (9.6%, 14.4%) O b. (90, 500) O c. (0.05, 0.9) O d. None of the above QUESTION 8 In a random sample of second hand laptops, it was found that half of them are in good acceptable conditions. What sample size should a buyer be sampling if the buyer wants a 95% confidence, that the proporton of good stuff will come within 5% margin of error? O a. 384.16 O b. 95 O c. 385 O d. 105