Suppose that you are the director of table game operations at a large casino, known especially for its poker room. You are interested in determining the average number of hands the casino should expect per hour during peak hours in the poker room. You monitor the number of hands over the next week and given a random sample of 43 hours, you see that on average 157.96 hands are played per hour, with a standard deviation of 7.248 hands. What is the 95% confidence interval for the true average number of hands per hour during peak hours?
1) (156.855, 159.065)
2) (155.9419, 159.9781)
3) (-155.73, 160.19)
4) (155.7279, 160.1921)
5) (155.73, 160.19)