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Question: Wind power. 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.
a) Discuss the assumptions and conditions for using Student's t inference methods with these data. Here are some plots that may help you decide whether the methods can be used:
b) What would you tell the landowner about whether this site is suitable for a small wind turbine? Explain.
Assume also that the sample standard deviation was $0.5 million and compute a 95% confidence interval for the average earning per trade for all trades made.
a.) What percentage of customers will receive a free oil change coupon?
consider two values r 0.08 and r ?0.58. describe them in relationship to each other. describe the clinical importance
the following problem was given to 60 student and doctors assume there exists a test to detect a disease say dwhose
question 1a major u.s. automaker has evaluated that the city mileage for one of its new suv models is normally
Calculate the sampling error associated with the mean of this random sample. What would you tell this advisor regarding the sample he has selected?
In a particular region of Rhode Island, it is known that fisherman's trap on average of 32 pounds of lobster per day with a standard deviation of four pounds.
in order to compare failure rates for two brands of tires a sample of 600 tires of brand a was taken of which 36
in this activity students are asked to design a hypothesis test collect data analyze the data and share a conclusion.
Women's SAT scores. The average performance of women on the SAT, especially the math part, is lower than that of men.
Question 1. The percent confidence interval is the range having the percent probability of containing the actual population parameter.
Normally distributed with an average of 125 minutes and a standard deviation of 18 minutes. What is the probability that a student taking this test will finish in 100 minutes or less?
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