Question

State whether each set of hypotheses is valid for a statistical test. If not valid, explain why

Answer 1

H0: The null hypothesis: It is a statement of no difference between sample means or proportions or no difference between a sample mean or proportion and a population mean or proportion. In other words, the difference equals 0.

Also

Ha: The alternative hypothesis: It is a claim about the population that is contradictory to H0 and what we conclude when we reject H0.

Consider image below,

Hence

The solution is given in the image below