The average price for a movie ticket in a certain country in 2018 was ​$9.73. A random sample of 26 movie ticket prices in a major city in that country had a sample mean of ​$13.28 with a standard deviation of ​$3.43. a. Do we have evidence that the price of a movie ticket in that city is different from the national​ average? Use a significance level of 0.05. b. Construct a 95​% confidence interval for the price of a movie ticket in that city. How does your confidence interval support your conclusion in part​ (a)?