Answer: Manager has evidence that the filling machine is over dash filling the cans.
Step-by-step explanation:
Let be the average amount of fluid per can.
Given claim : A can of soda is labeled as containing 15 fluid ounces.
i.e.
The quality control manager wants to verify that the filling machine is not over dash filling the cans.
i.e.
Since null hypothesis always contains equals sign.
So, the set of hypothesis for the given situation will be :-
Also, the quality control manager obtains a sample of 78 cans and measures the contents.
The sample evidence leads the manager to reject the null hypothesis.
That means he has evidence that the filling machine is over dash filling the cans.