Capture 11

The gas mileages (in miles per gallon) of 24 randomly selected sports cars are listed in the accompanying table. Assume the mileages are not normally distributed. Use the standard normal distribution or the t-distribution to construct a 90% confidence interval for the population mean. Justify your decision. If neither distribution can be used, explain why. Interpret the results. E Click the icon to view the sports car gas mileages. Let ¢ be the population standard deviation and let n be the sample size. Which distribution should be used to construct the confidence interval? Neither distribution can " be used to construct the confidence interval, since the population is not normally distributed and n < 30. Identify the confidence interval. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to one decimal place as needed.) v Neither the standard normal distribution nor the t-distribution can be used to construct the interval. Interpret the results. Select the correct choice below and, if necessary. fill in the answer box to complete your choice. With % confidence, it can be said that the mean gas mileage of all sports cars (in miles per gallon) is between the interval's endpoints. (Type an integer or a decimal. Do not round.) % of all random samples of 24 sports cars from the population of all sports cars will have a mean gas mileage (in miles per gallon) that is between the interval's endpoints. (Type an integer or a decimal. Do not round.) With % confidence, it can be said that most sports cars in the population have gas mileages (in miles per gallon) that are between the interval's endpoints. (Type an integer or a decimal. Do not round.) It can be said that % of all sports cars have a gas mileage (in miles per gallon) that is between the interval's endpoints. (Type an integer or a decimal. Do not round.) v Neither the standard normal distribution nor the t-distribution can be used to construct the interval.