Mathematics, 05.05.2020 05:11 alex43079

A parent believes that the average height for 14 year old girls differs from that of 14 year old boys. The summary data are listed below where height is in feet: the sample mean of 5.1 and the population standard deviation of 0.2 based on a random sample of size 40 from 14 year old girls. What are the point estimate and the margin of error with 95% confidence level?

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