As a follow-up to a report on gas consumption, a consumer group conducted a study of suv owners to estimate the mean mileage for their vehicles. a simple random sample of 96 suv owners was selected, and the owners were asked to report their highway mileage. the results that were summarized from the sample data were x overbarequals19.6 mpg and sequals5.6 mpg. based on these sample data, compute and interpret a 95% confidence interval estimate for the mean highway mileage for suvs.