(Solved): a. What is the probability that the sample proportion will be within 0.03 of the population&nbs ...

a. What is the probability that the sample proportion will be within 0.03 of the population proportion out of 10,000 person database?a. What is the probability that the mean price for a sample of 50 federal income tax returns out of 3000 processed is within $16 of the population mean?

Product Labeling. The Grocery Manufacturers of America reported that 76% of con- sumers read the ingredients listed on a product's label. Assume the population propor- tion is p = .76 and a sample of 400 consumers is selected from the population. Income Tax Return Preparation Fees. The CPA Practice Advisor reports that the mean preparation fee for 2017 federal income tax returns was $273. Use this price as the population mean and assume the population standard deviation of preparation fees is $100.