Practice problem
One-Tailed vs. Two-Tailed Tests
If you wanted to see if your friend Kelly's lemonade stand made more money on average over the past 5 summers than your other friend Janice, what kind of test would you choose to use?
Practice problem
If you wanted to see if your friend Kelly's lemonade stand made more money on average over the past 5 summers than your other friend Janice, what kind of test would you choose to use?