A researcher knows that the weights of 6-year olds are normally distrlbuted With cc = 20 kg and 0 = 3.2 kg. She suspects that children in povertystncken regions are - undernourished and therefore underweight. For a smile of n = 16 poverty-stncken children, the researcher obtains a sample mean of 18.2 g. Use a two-tailed test and an a level of .01 to determine if this sample is reliably different from what would be expected for the general population of 6-year olds. Perform a complete hypothesis test, including a journal style summary statement