The average price for a movie ticket in a certain country in 2018 was $8.31. A random sample of 27 movie ticket prices in a major city in that country had a sample mean of $11.57 with a standard deviation of $3.15. 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)? a. Determine the null and alternative hypotheses. Choose the correct answer below. O A. Ho: H= $8.31 O B. Ho: H# $8.31 O C. Ho: H > $8.31 Ha: H > $8.31 Ha: H = $8.31 Ha: US $8.31 O D. Ho: H