I have found the following exercise while trying to understand the Maximum Likelihood Estimation in Practice:

"In a random sample of 1000 Swiss employees, 78% stated that

they received a pay increase for the current year.

What is the MLE for the share of employees with a pay raise?"

I have no idea how to solve this question. My only idea was that, to be able to make a Maximum Likelihood Estimation at all, I would have to chose a distribution first (and I would chose a normal distribution here) - but else? I am grateful for any help!

Thanks