Rick's gym wants to make sure they are offering the right types of workouts. Rick knows that men and women seem to prefer different styles of workout classes. She wants to find out if the proportion of male vs female "regulars" (workout one a week or more) if different. Rick surveyed 1800 men and 1500 women he found out that 512 men workout regularly and 312 women work out regularly. What is the alternative and null hypothesis