please help

A highly anticipated sci-fi movie opened in theaters with a special midnight showing this past Friday. For the Saturday edition of her town's newspaper, Kira wrote a column about local interest in the movie. She found that the attendance for the midnight showing for all the theaters in the state had a mean of 230 people with a standard deviation of 19 people. The attendance for the midnight showing at her town's theater was 210 people. Find the z-score of the attendance at the theater in Kira's town relative to the attendances among all the theaters in the state. Round your answer to two decimal places. 2 = X 5