9.4.48

The average price for a theater ticket in a certain city in 2017 was $114.36. A random sample of 26 theater ticket prices in the city in 2018 had a sample mean of $120.07 with a standard deviation of $43.34.

Yes, all of the conditions have been met.

-Do we have evidence that theater ticket prices in the city changed from the 2017price? Use a significance level of 0.05.

-Construct a 95% confidence interval for the price of a theater ticket in the city. How does your confidence interval support your conclusion in part

H0: =$114.36

Ha: $114.36

The test statistic is

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