Use the Two-Proportions Z-Interval Procedure to Obtain the Required Confidence

question 28

Multiple Choice

Use the two-proportions z-interval procedure to obtain the required confidence interval for the difference between twopopulation proportions. Assume that independent simple random samples have been selected from the two populations.
-In a random sample of 45 Democrats from one city, 10 approved of the mayor's performance. In a random sample of 49 Republicans from the city, 24 approved of the mayor's performance. Find a
90% confidence interval for the difference between the proportions of Democrats and Republicans
Who approve of the mayor's performance.

• A)-0.423 to -0.112
• B)0.037 to 0.408
• C)0.035 to 0.408
• D)0.065 to 0.379

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Definitions:

Segregation

The enforced or de facto separation of groups of people based on characteristics such as race, religion, or socioeconomic status, often leading to inequality.

Social Distance

The measure of perceived or desired closeness or remoteness between individuals or groups in social contexts.

Ethnic Groups

Groups of people who share a common culture, language, ancestry, or other social characteristics.

White

Pertains to a racial classification and social identity typically associated with people of European descent.