explain

(Q9.2.c) In a random sample of 60 dog owners enrolled in obedience training, it was determined that the mean amount of money spent per owner was $109.33 per class, with a standard deviation of $12. Construct and interpret a 98% confidence interval for the mean amount spent per owner for an obedience class. Round to the nearest cent. State the interval and give the interpretation in a complete sentence. Also explain the steps you took to find the answer. Note: If doing it by hand, use "t" not "z."