Determine the null and alternative hypothesis in each of the situation below.

1. it's an accepted facts that ethanol boils at 173. 1 ºF; you have a theory that it ano actually has a different boiling point, of over 174ºF.
Null:___________
Alternative:__________

2. a classroom full of students at a certain elementary school if performing a lower than average levels on standardized tests. the latest scores are thought to be due to poor teacher performance however you have a theory that the students are performing poorly because their classroom is not as well ventilated as the other classrooms in the school.
Null:__________
Alternative:__________​