Question
A market researcher for an electronics company wants to study the viewing habits of a particular area. A random sample of 40 people who answered
A market researcher for an electronics company wants to study the viewing habits of a particular area. A random sample of 40 people who answered a questionnaire is selected. During a specific week the results were: Time spent watching TV There were 27 respondents who also watched the nightly news at home at least 3 times a week.
- Construct a 95% confidence interval estimate for the population mean.
- Construct a 93% confidence interval estimate for the population mean for the problem described above with n=140.
- What is the standard error you used in the interval above?
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Probability And Statistical Inference
Authors: Robert V. Hogg, Elliot Tanis, Dale Zimmerman
10th Edition
013518939X, 978-0135189399
