A parent believes the average height for 14 year old girls differs from that of 14 year old girls and boys.

A parent believes the average height for 14 year old girls differs from that of 14 year old

 girls and boys. Estimate the difference in the height between girls and boys using a 95% confidence interval. The summary data are listed below where height is in feet.

Based on your interval, do you think there is a significant difference between the true mean height of 14 year old girls and boys? Explain.