THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 76

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Independent samples of math scores from students in the U.S.and Europe were collected from normal populations.A sample of 50 students from the U.S.had an average score of 570 while a sample of 50 European students had an average score of 540.The population standard deviations for the average scores of the US and European students are 102 and 115 respectively.
-What is the upper confidence limit of the 95% confidence interval for the difference between the population means?

• A)65.65
• B)51.73
• C)72.61
• D)94.23

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Definitions:

19th-century Workers

Laborers and employees from the 1800s, often associated with the rise of industrialization and the corresponding socio-economic changes.

Foundational

Relating to or forming the base or essence of something; serving as a foundation or basis.

Freedom

The power or right to act, speak, or think as one wants without hindrance or restraint.

Independence

The state of being self-sufficient and not reliant on external forces or entities for decision-making or governance.