Someone wants to estimate the mean cost of flights from Newark, NJ to Orlando, FL on Labor Day weekend in September. To do this they gathered a sample of 20 flights from Newark, NJ to Orlando, FL which yielded a mean cost of 308 and a standard deviation of 49. Find the 90% confidence interval, interpret the confidence interval, and decide if a travel agent who claims the average cost of flights is $290 is wrong about the true mean cost. What are the following values? ROUND ANY DECIMAL ANSWERS TO 2 DECIMAL PLACES. n = X = S= Confidence level = a= Lower confidence limit = Upper confidence limit = Margin of Error = Best point estimate =Report your interval in the 3 common statistical methods: Interpret your interval: We are % condent that the interval from to actually does contain the true value of the population . Is the travel agent wrong? (yes or no)