found that 307 had two or more personality preferences in common. In another random sample of 471 married couples, it was found that only 31 had no preferences in common. Let be the population proportion of all ma
Suppose a random sample of 459 married couples found that 307 had two or more personality preferences in common. In another random sample of 471 married couples, it was found that only 31 had no preferences in common. Let be the population proportion of all married couples who have two or more personality preferences in common. Let be the population proportion of all married couples who have no personality preferences in common. Find a 95% confidence interval for P1-P2
In a random sample of 459 married couples found that 307 had two or more personality preferences in common.
X1 = The number of married couples who have two or more personality preferences in common. = 307
N1: Sample size of married couples = 459
In a random sample of 471 married couples, it was found that only 31 had no preferences in common.
X2: The number of married couples who have no personality preferences in common. = 31
N2: Sample size of married couples = 471
It is asked to find a 95% confidence interval for difference between population proportions of married couples who have two or more personality preferences in common and who have no personality preferences in common. (P1-P2)
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