The city of Laguna Beach operates two public parking lots. The Ocean Drive park ing lot can accommodate up to 125 cars and the Rio Rancho parking lot can accommodate up to 130 cars. City planners are considering increasing the size of the lots and changing the fee structure. To begin, the Planning Office would like some infor mation on the number of cars in the lots at various times of the day. A junior planner officer is assigned the task of visiting the two lots at random times of the day and eve ning and counting the number of cars in the lots. The study lasted over a period of 1 month. Required:
a. State the decision rule for 0.05 significance level
b. Compute the value of the test statistic.