hi, please help this probability and statistics questions with clear steps and details, thank you . if you cannot find the answer, please give a reason for it.

A city survey was conducted to find out the opinion of the general public on whether the individual smoker or society should bear the medical cost of smoking-related illnesses. In a random sample of 800 residents in the city, 160 were of the view that society should bear the cost of medical treatment for smoking-related illnesses. Answer Questions 12-15. Question 12: (1 Mark) Denote p to be the proportion of the residents with the view that society should bear the cost of the medical treatment for smoking-related illnesses in the sample. Find p. Question 13: (1 Mark) Find the margin of error for the true proportion of the residents with the view that society should bear the cost of the medical treatment for smoking-related illnesses at the significance level of 10%. Question 14: (1 Mark) Based on Question 13, find the 90% confidence interval for the true proportion of the people who think that society should bear the cost of medical treatment for smoking-related illnesses. Question 15: (1 Mark) Under the same assumptions in Question 14, would the corresponding 95% confidence interval for the true proportion be wider than that of the 90% confidence interval