Need help answering this problem. Can you please help me by any chance?

2 (10 pts). A common finding in criminology is that youths who spend a lot of free time in the company of their friends and in the absence of adult supervision are more likely to smoke cigarettes, drink alcohol, and use marijuana. Researchers estimate that the average youth uses these substances at a rate of 0.75 per year and is normally distributed. You collect data from a simple random sample of 20 youths whose parents report that they spend an inordinate amount of time with their friends, and find the self-report substance use figures as follows: mean is 1.8 and the standard deviation is 1.631. Using a = 0.05, test the hypothesis that these youths engage in more substance use than the average adolescent. Use the nine steps from the powerpoint slides