Answer:
The null hypothesis is A) Drug X does cure disease Y
Step-by-step explanation:
Consider the provided information.
If there is no statistical significance in the test then it is know as the null which is denoted by [tex]H_0[/tex], otherwise it is known as alternative hypothesis which denoted by [tex]H_a[/tex].
A pharmaceutical company ran a clinical trial to test if drug X cures disease Y.
Since, claim is drug X cures disease.
Therefore, the null hypothesis is A) Drug X does cure disease Y