The Future-Vision Company is considering applying for a franchise to market satellite television dish systems in the Florida market. As part of the company's research into this opportunity, staff in the New Acquisitions Department conducted a survey of 548 homes selected at random. They asked a number of questions on the survey. The data for some of the variables are contained in the excel file called Future vision. (File attached). One key question asked whether the household was currently connected to cable TV.
a) Using the sample information in the excel file, what is the 95% confidence interval estimate of the true proportion of households in the market area that subscribe to cable television?
b) Based on the sample data, develop a 95% confidence interval estimate for the mean income and interpret your results.
Attachment:- Future Vision Excel Homework chpt 8.xlsx