Need help with this if someone can help me out.

"You must show all work WITH FORMULAS in order to receive credit. However, you SHOULD use your calculator to verify your answers. Spectrum sampled 562 customers and found that 83 of them experienced an interruption in highspeed service during the previous month. 1A. 18. 1C. Find a point estimate for the population proportion of all customers who experienced an interruption. Show your work. 1A. Construct a 98% confidence interval for the proportion of all customers who experienced an interruption. Show all work. 13. Spectrum's quality control manager claims that no more than 10% of its customers experienced an interruption during the previous month. Is the manager correct or wrong? Explain using a sentence or two. A Gallup poll taken last week asked adults whether they believed the economy was improving since this past January. The researchers found that only 33% said that the economy had improved. Find the sample size needed to have 95% confidence and a margin of error of only 0.025. Show your formula. BA. BB. An important issue facing American doctors is the large number of medical malpractice lawsuits and the expenses that they generate. In a study of 1258 randomly selected medical malpractice lawsuits, it is found that 913 of them were later dropped or dismissed. Construct a 95% confidence interval estimate of the proportion of medical malpractice lawsuits that are dropped or dismissed. Show all work. 3A. Write a sentence or two that interprets/ explains your answer from 3A. A pollster is going to sample a number of likely voters in the Orlando area and construct a 99% confidence interval for the proportion of likely voters who would support the chief of police in his efforts to become the mayor of the city. Find the minimum sample size so that the margin of error will be no larger than 5%. Show your work. 48