I need the full answer for these questions. provide me with the correct solutions please. This question is from Elementary Survey Sampling by Richard L. Scheaffer

Wage earners in a large firm are stratified into management and clerical classes, the first having 300 and the second having 500 employees. to assess attitude on sick-leave policy, independent random samples of 100 workers each were selected, one sample from each of the classes. After the sample data were collected, the responses were divided according to gender. In the table of results, a =Number who like the policy; b =Number who dislike the policy; and c =Number who have no opinion on the policy. Management. Clerical, Total N = 300 N2 = 500 N = 800 Male 1 = 60 1 = 24 110 b = 15 b = 4 C=5 c=2 Female 2 = 10 1 = 42 90 b =7 b = 20 C= 3 C= 8 Total m = 100 72 = 100 n = 200 Find an estimate and an estimated variance of that estimate for each parameter listed: a. Proportion of managers who like the policy [Hint: (1) The target population is all managers, i.e., "management" column. (2) What sampling strategy is used?] b. Proportion of wage earners who like the policy [Hint: (1) The target population is all wage earners, i.e., the whole table. (2) What sampling strategy is used? What are the strata?] c. Total number of female wage earners who dislike the policy Hint: Consider the population proportion as the population mean of a Bernoulli population. The total number of female wage earners who dislike the policy is the population total, T = Np. Refer to lecture note 6 for the formulas to estimate population total. Replace the sample variance s' with p(1 - p)-] d. Difference between the proportion of male managers who like the policy and the proportion of female managers who like the policy Difference between the proportion of managers who like the policy and the propor- tion of managers who dislike the policy