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categoryالطاقة المتجددة
schoolبكالوريوس
event_available2026-07-13
السؤال
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Should you generate electricity with your own personal wind turbine? That depends on whether you have enough wind on your site. To produce enough energy, your site should have an annual average wind speed of at least 8 miles per hour, according to the Wind Energy Association. One
candidate site was monitored for a year, with wind speeds recorded every 6 hours. A total of 1114 readings of wind speed averaged 8.019 mph with a standard deviation of 3.813 mph. You've been asked to make a statistical report to help the landowner decide whether to place a wind
turbine at this site. Complete parts (a) and (b).
(a) Discuss the assumptions and conditions for using Student's finference methods with these data. Here are some plots that may help you decide whether the methods can be used.
Click the icon to view the plots.
Which of the assumptions and conditions for Student's tinference method are met? Check all that apply.
A. Independence Assumption.
B. Randomization Assumption.
C. 10% Condition.
D. Nearly Normal Condition.
E. None of the assumptions are met.
(b) Find the 95% confidence interval.
O A.
(Round to three decimal places as needed.).
OB. The confidence interval cannot be calculated because not all assumptions were fulfilled in part (a).
Is this site suitable for a small wind turbine?
A. Yes. The required annual average wind speed of 8 mph is contained within the interval.
OB. No. While the required average wind speed of 8 mph is contained within the interval, there are also values below 8 mph.
OC. Because the confidence interval cannot be calculated, it is not possible to draw a conclusion.
Graph/Chart
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Wind Speed (mph)
Click to select your answer.
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