Suppose it is M that the length of microchips produced by a factory is normally distributed with @pulation standard deviation of2mm.The management claims that the population mean length is 35mm. Suppose you pick 20 microchips at random. You wish to perform a hypothesis test to determine whether the average length deviates from claimed 35mm. Suppose you nd that the average length calculated from your random sample of 20 is 33mm. Calculate and report the value of the appropriate test-statistic