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4. A consultant working for a State Police barracks contends that service weapons will fire with a higher muzzle velocity if the barrel is properly cleaned. A random sample of Glock 9-mm handguns was obtained, and the muzzle velocity (in feet per second) of a single shot from each gun was measured. Each gun was professionally cleaned, and the muzzle velocity of a second shot (with the same bullet type) was measured. The data are given in the table. Use o = 0.01 assume the muzzle velocity is normally distributed. Gun 1 2 3 4 5 Before 1505 1419 1504 1494 1510 1506 After 1625 1511 1459 1441 1472 1521 (a) (6 points) State the assumptions. 2. 3.(b) (3 points) State the hypothesis. Ho: Ha: (c) (4 points) Find the Test Statistic. TS = (d) (4 points) Find and sketch the rejection region. RR =(e) (4 points) Find the p-value of your test statistic. p-value = (f) (3 points) What will be the decision based on the p-value. Decision: Reason: (g) (3 points) Give a conclusion based on your decision