Question: The Organization for Economic Cooperation and Development (OECD) conducts studies on unemployment rates by country and publishes its findings in the document Main Economic Indicators.

The Organization for Economic Cooperation and Development (OECD) conducts studies on unemployment rates by country and publishes its findings in the document Main Economic Indicators. Independent random samples of 100 and 75 people in the civilian labor forces of Finland and Denmark, respectively, revealed 7 and 3 unemployed, respectively, find a 95% confidence interval for the difference between the unemployment rates in Finland and Denmark.
The two-proportions plus-four z-interval procedure as discussed on page 467 to find the required confidence interval. Interpret your results.

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