Nationally, 83% of Americans have earned a high school diploma. We want to see if the proportion of Pennsylvania high school students who have a high 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 p-hat of Pennsylvanians who have a high school diploma. If this was a true random selection of size 225 from a population of Pennsylvanians where 83% have earned a high school diploma, what would the mean and standard deviation of the sample proportion p-hat be?
Nationally, 83% of Americans have earned a high school diploma. We want to see if the proportion of Pennsylvania high school students who have a high 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 p-hat of Pennsylvanians who have a high school diploma. If this was a true random selection of size 225 from a population of Pennsylvanians where 83% have earned a high school diploma, what would the mean and standard deviation of the sample proportion p-hat be?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Nationally, 83% of Americans have earned a high school diploma. We want to see if the proportion of Pennsylvania high school students who have a high 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 p-hat of Pennsylvanians who have a high school diploma. If this was a true random selection of size 225 from a population of Pennsylvanians where 83% have earned a high school diploma, what would the mean and standard deviation of the sample proportion p-hat be?
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