A social worker was interested in determining whether there is a significant difference in the average monthly cost per child for childcare outside the home between state supported facilities and privately owned facilities. Two independent random samples were selected yielding the following information: 
Find a 90% confidence interval for the true difference in average monthly cost of the childcare.
______________
Based on the interval above, can one conclude there is a significant difference in average cost of childcare between the state supported facilities and privately owned facilities?
______________
Explain.
________________________________________________________
Definitions:
Active Way
Engaging or participating directly and purposefully in activities or processes.
Social Exchange Theory
A social psychological and sociological perspective that explains social change and stability as a process of negotiated exchanges between parties.
Economic Model
A theoretical construct that represents economic processes through a set of variables and a set of logical and/or quantitative relationships between them.
Benefits
Advantages or positive outcomes derived from a particular action, decision, or situation.
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