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Most married couples have two or three personality preferences in common. A random sample of 375 married couples found that 130 had three preferences in

Most married couples have two or three personality preferences in common. A random sample of 375 married couples found that 130 had three preferences in common. Another random sample of 573 couples showed that 215 had two personality preferences in common. Let p1 be the population proportion of all married couples who have three personality preferences in common. Let p2 be the population proportion of all married couples who have two personality preferences in common.

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