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p should be a value of 0.5 or 50%% ? 7. A recent survey found that out of a random sample of 130 drivers, 80

p should be a value of 0.5 or 50%% ? 7. A recent survey found that out of a random sample of 130 drivers, 80 of them wear seatbelts. What is the 95% confidence interval for the proportion p of drivers that do not wear seatbelts? (OVER for problems 8 and 9)

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