Mathematics, 30.04.2021 16:10, thibeauxkristy

Nationally, 83% of Americans have earned a high school diploma. We want to see if the proportion if PA high school students who have school diploma is greater than 83%. Suppose a representative sample of 225 Pennsylvanians is taken and each is asked if they have earned a high school diploma. Consider the sample proportion (phat) of PA who have a HS diploma. If this was a true random sample of size 225 from a population of PA where 83% earned a diploma, what whould the mean and standard deviaiton be of phat?

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Nationally, 83% of Americans have earned a high school diploma. We want to see if the proportion if...