(Solved): - Write a null and alternative hypothesis for the following scenarios: You want to test if students ...

- Write a null and alternative hypothesis for the following scenarios: You want to test if students who join clubs have better grades than students who do not join clubs. You want to test if wearing sunscreen really helps to prevent skin cancer, you have two groups of people, one has people who have never used sunscreen and the other group has people who always wear sunscreen. 3. You want to test if students who sleep more than 6 hours a night score higher on assignments the following day.