Null hypothesis and Alternative Hypothesis?

A faculty member claims the amount of time spent by a student studying at home is not more than 2.25 hours.


With o as 0.75


A survey conducted to test the claim found 50 students studied 2.46 hours.


A significance level of 5 percent.





What is the null hypothesis what is the alternative hypothesis?





I'm so confused about this.|||Based on the way the question is written, the faculty says that the time spent is not more than 2.25 hrs. So, your null hypothesis would be that the average time spent is equal to 2.25 hours. Your alternative hypothesis would be that the average time spent is less than 2.25 hours.





When it comes to hypothesis, someone will make a claim that a certain event either less than, greater than, or not equal to the original number. Your null hypothesis will be a statement/equation that will read that the original number is true. Your alternate hypothesis will be rejecting the null hypothesis, whether it is in fact less than, greater than, or not equal to the original number.





Ex: I claim that the lifespan of a man is less than the US average of 75 years. Then, the null hypothesis would be that the US average is correct, or the US average is equal to 75 years. The alternate hypothesis, which will reject the null hypothesis, will translate to that the US average is less than 75 years.








Side note: I would be more inclined to believe that the faculty would claim that the amount of time spent is greater than 2.25, based on the survey results being greater than 2.25.