A video game manufacturer has recently released a new game. Themanufacturer wants to know whether players rate their new game asmore or less difficult than the average difficulty rating of all oftheir games, μ = 6 and σ = 2. A random sample of 36 players yieldeda sample mean of 7 and a standard deviation(s) of 1.8.
             a.State the null and alternative hypothesis.
             b.Conduct a z-test on the data given.
             c.What do you conclude?
