b5 1' 5 Home Page-Teach... g; Classes D Watch movies onlin... VitalSoiJrce Booksh... " Netix The accuracy of a coin~counter machine is gauged to accept nickels with a mean diameter of miliimeters 21 .21 mm. A sample of 44 nickles was drawn from a reported defective coin-counter machine located near a school. The sample had a sample mean of21.213 mm and sample standard deviation 0.009 mm. ' Test the claim that the mean nickei diameter accepted by this coin-counter machine is greater than ! 21.21 mm. Test at the 0.05 significance leVel. (3) identify the correct alternative hypothesis H\": is T) 21.21 Op