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For a recent report on sleep deprivation, the Centers for Disease Control and Prevention interviewed 11505...

For a recent report on sleep deprivation, the Centers for Disease Control and Prevention interviewed 11505 residents of California and 4938 residents of Oregon. In California, 920 respondents reported getting insufficient rest or sleep during each of the preceding 30 days, while 439 of the respondents from Oregon reported the same.

Calculate a 99 % confidence interval for the difference between the proportions of Californians and Oregonians, ???????????−???????pCalifornia−pOregon, who report getting insufficient rest. Round your answer to 4 decimal places.

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