Data was collected on infant attachment classifications and family income to determine ...

     Data was   collected on infant attachment classifications and family income to determine   whether the two were independent of each other. Conduct a complete null   hypothesis significance test to determine whether the distribution of   infants' attachment classifications and income are independent of each   other.       Secure Avoidant Resistant   Disorganized      High Income 60 10 10 20   Moderate 65 15 10 10   Low Income 40 20 20 20