Generally speaking, would you say that most people can be trusted? A random sample of n1 = 252 people in Chicago ages 18-25 showed that r1 = 50 said yes. Another random sample of n2 = 271 people in Chicago ages 35-45 showed that r2 = 74 said yes. Does this indicate that the population proportion of trusting people in Chicago is higher for the older group? Use α = 0.05. (b) What is the value of the sample test statistic? (Test the difference p1 − p2. Do not use rounded values. Round your final answer to two decimal places.) (c) Find (or estimate) the P-value. (Round your answer to four decimal places.)

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Generally speaking, would you say that most people can be trusted? A random sample of n1 = 252 people in Chicago ages 18-25 showed that r1 = 50 said yes. Another random sample of n2 = 271 people in Chicago ages 35-45 showed that r2 = 74 said yes. Does this indicate that the population proportion of trusting people in Chicago is higher for the older group? Use α = 0.05.

(b) What is the value of the sample test statistic? (Test the difference p1p2. Do not use rounded values. Round your final answer to two decimal places.)


(c) Find (or estimate) the P-value. (Round your answer to four decimal places.)

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