Hello, I need help with this For this research scenario, what the null and alternative hypotheses would be and why?

Hello,

I need help with this

For this research scenario, what the null and alternative hypotheses would be and why?

A pharmaceutical company believes their weight loss drug is more effective than any program on the market. They study two groups of people: Group A is given the drug and Group B is given a placebo. They then compare weight loss over the course of 3 months