Dylan Jones, who owns a car, keeps careful records of the car’s fuel efficiency. Based on a sample of nine measurements, the mean was 23.4 miles per gallon (mpg) with a sample standard deviation of 0.9 mpg. (Use t Distribution Table & z Distribution Table.)Compute the 95% confidence interval of mpg.How many measurements should be collected to compute a confidence interval with a 0.1 mpg margin of error?