A random sample of 376 married couples found that 296 had two or more personality preferences in common. In another random sample of 550 married couples, it was found that only 34 had no preferences in common. Let p1 be the population proportion of all married couples who have two or more personality preferences in common. Let p2 be the population proportion of all married couples who have no personality preferences in common. (a) Find a 95% confidence interval for p1 – p2. (Use 3 decimal places.) lower limit upper limit

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.