THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 71

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
In a recent survey of 240 teachers in Richmond,Virginia,77.2% supported standardized national testing of elementary students.In a survey of 162 teachers in Raleigh,North Carolina,64.2% supported national testing.
-What is the upper confidence limit of the 99% confidence interval for the difference between the two population proportions?

• A)0.249
• B)0.222
• C)0.265
• D)0.278

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Definitions:

Students

Individuals who are engaged in learning, especially those enrolled in educational institutions.

Mean Score

The average value of a set of numbers, calculated by dividing the sum of all the numbers by the count of numbers.

Basketball Games

Team sports played on a rectangular court where two teams of five players each compete to score points by throwing a ball through the opposing team's hoop.

Normal Distributions

A bell-shaped frequency distribution curve, where most of the data points are concentrated around the mean or average, often seen in natural phenomena and human attributes.