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For a recent report on sleep deprivation, the Centers for Disease Control and Prevention interviewed 11520...

For a recent report on sleep deprivation, the Centers for Disease Control and Prevention interviewed 11520 residents of California and 4956 residents of Oregon. In California, 956 respondents reported getting insufficient rest or sleep during each of the preceding 30 days, while 461 of the respondents from Oregon reported the same. Calculate a 90 % 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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The 90 % confidence interval for the difference between the proportions of Californians and Oregonians, pCalifornia−pOregon, who report getting insufficient rest is (-0.0181, -0.0019).

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