Answered step by step
Verified Expert Solution
Question
1 Approved Answer
A market researcher for a consumer research company wants to study the media's viewing behavior of residents of a particular area. A random sample
A market researcher for a consumer research company wants to study the media's viewing behavior of residents of a particular area. A random sample of 40 respondents is selected, and each respondent is instructed to keep a detailed report of time spent engaged viewing content on any screen (Smartphone, TV, Tablet etc.) for a specific week. The results of the study are: Content viewing per week X = 51 hours, S = 3.5 hours. 32 respondents have at least one ultra-high definition (UHD) screen. a.) Construct a 95% confidence interval estimate for the mean content viewing time per week in this area. b.) Construct a 95% confidence interval estimate for the population proportion of residents who have at least one UHD screen. Suppose that the market researcher wants to take another survey in a different location. Answer the questions: c.) What sample size is required to be 95% confident of estimating the population mean content viewing within 2 hours assuming that the population standard deviation is equal to 5 hours? d.) How many respondents need to be selected to be 95% confident of being 0.06 of the population proportion who have UHD on at least one television set if no previous estimate is available. e.) Based on (c) and (d), how many respondents should the market researcher select if a single survey is being conducted?
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started