Before revision: Hypothesis: "The newborns have phenylketonuria and hypothyroidism" Null Hypothesis (H0): "The newborns do not have phenylketonuria and hypothyroidism" ,
After revision: Hypothesis: "The newborns have phenylketonuria and hypothyroidism" .Null hypothesis (H0): "The newborns do not have phenylketonuria and hypothyroidism" .