Question 1
In hypothesis testing, what does it mean to say that a result is statistically significant at the $5\%$ level?
Question 2
Which statement best describes the null hypothesis $H_0$?
Question 3
What is the main purpose of a $p$-value?
Question 4
If a test gives a $p$-value of $0.03$ and the significance level is $0.05$, what should be concluded?
Question 5
What does a Type I error mean in hypothesis testing?
