Should you generate electricity with your own personal wind turbine? Well, that depends on whether or not you have enough wind at the site of your turbine. According to the Wind Energy Association, your site will need an annual average wind speed of at least 8 miles per hours. Suppose that you have taken readings from your site every 12 hours for 1 year. A total of 730 observations of wind speed averaged 8.109 miles per hour with a sample standard deviation of 3.831 miles per hour

Question

Should you generate electricity with your own personal wind turbine?  Well, that depends on whether or not you have enough wind at the site of your turbine.  According to the Wind Energy Association, your site will need an annual average wind speed of at least 8 miles per hours.  Suppose that you have taken readings from your site every 12 hours for 1 year.  A total of 730 observations of wind speed averaged 8.109 miles per hour with a sample standard deviation of 3.831 miles per hour

anonymous · Answer

How large a sample of wind speeds would be needed to estimate the mean wind speed at your site with a margin of error of 0.01 miles per hour and 90% confidence