Question

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.

	State supported Facilities	Privately owned Facilities
Sample Size	64	64
Sample Mean	725	675
Sample Standard Deviation	95	80

Based on the 90% confidence interval for the true mean difference in average cost of children (state supported - privately owned), can one conclude that there is a difference in the average cost of children between the state supported facilities and privately owned facilities?

Group of answer choices

90% CI is (47.28, 52.72). One can conclude that there is no difference in the average cost of childcare between the state supported facilities and privately owned facilities.

90% CI is (47.28, 52.72). One can conclude that there is a difference in the average cost of childcare between the state supported facilities and privately owned facilities.

90% CI is (24.46, 75.54). One can conclude that there is no difference in the average cost of childcare between the state supported facilities and privately owned facilities.

90% CI is (24.46, 75.54). One can conclude that there is a difference in the average cost of childcare between the state supported facilities and privately owned facilities.

Answer 1