The leader of a car theft gang dares his hitmen to increase the number of new BMWs stolen weekly from a known national average of 25 with standard deviation of 5. The young boss believes that if the hitmen stop ingesting energy drinks, their car theft productivity will improve. A sample of 75 of his hitmen volunteered to take part in the experiment. After staying away from energy drinks for one month, the average number of cars stolen results in 27. What can Mr. Grand Theft Leader conclude? What is step 1