Scientist Irish used a paired t-test to test the effectiveness of a drug she is developing. She obtained a p-value = XXXXXXXXXXshe used α = XXXXXXXXXXSuppose the drug actually works. Which of the...

Scientist Irish used a paired t-test to test the effectiveness of a drug she is developing. She obtained a p-value = 0.005 (she used α = 0.05). Suppose the drug actually works. Which of the following statements is correct?

1. Irish should not have rejected the null hypothesis because the p-value is too large.


2. Type I error occurred.


3. Type II error occurred.


4. There was no error.