In sample of 10000 betsa casino's mean profit is 0.28 with standard deviation 4. Suppose we want to test the claim that the mean profit is above 0.2 Find the standard error of the mean and answer the...

In sample of 10000 betsa casino's mean profit is 0.28 with standard deviation 4. Suppose we want to test the claim that the mean profit is above 0.2

Find the standard error of the mean and answer the questions below