What could be an interpretation in words of the confidence interval 3.98 plus or minus which the margin of error is 0.66?
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- What term is used to express the likelihood of an event occurring? Are there restrictions on its values? If so, what are they? If not, explain.The confidence interval for a population mean is (7.43, 7.59). What are the sample mean and the margin of error? Margin of Error = Give your answers as decimals, to two places.Please help
- A study found that for a sample of cars traveling on Interstate 70, the average speed was 70 mph with a 90% confidence interval for the population mean speed of drivers of (66 mph, 76 mph). How do you find the margin of error for this confidence interval? Show work please.Suppose a random sample of 50 basketball players showed the average height to be 78 inches. Also, assume that the population standard deviation is 1.5 inches. What do you notice about the length of the confidence interval as the confidence level goes down? And if you used a confidence level of 80%, would you expect the confidence interval to be wider or thinner than that of 90%? Explain.The confidence interval for a population mean is (7.32, 7.52). What are the sample mean and the margin of error? H = Margin of Error = Give your answers as decimals, to two places.
- The margin of error for a 95% confidence interval is approximately 2 times the standard error. True FalseYou want to get a 90% confidence interval for the difference between the percentage of females with red hair compared to males with red hair. You sample 76 females and find 34 of them have red hair. You sample 65 males and find 33 have red hair. < p1−p2 <I need accurate with full details.
