1) A survey of 850 workers was asked how much they utilized Internet at work. 578 said they utilized the internet within limits, and 255 said that they didn’t utilize Internet at work. Create a 95% confidence interval estimate for proportion of all workers who didn’t use Internet within limits. Describe your findings so that your non-quantitative partner will understand them.
2) You are designer for your company's web site. You have data to point to that mean download time for homepage is 5.8 seconds and that standard deviation of download time is= 2.1 seconds. If we suppose that download times are usually distributed, what percent of users will wait between 4 and 8 seconds for homepage to download? Describe your findings so that your non-quantitative partner will understand them.