A Test of Spelling Ability Is Given to a Random

question 136

Essay

A test of spelling ability is given to a random sample of 10 students before and after they complete a spelling course.The mean score before the course was 119.60,and after the course the mean score was 130.80.The standard deviation of the difference is 16.061.Calculate a 99 percent confidence interval.

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Definitions:

Mahayana Buddhists

Followers of the Mahayana branch of Buddhism, emphasizing the pursuit of enlightenment for the sake of all beings.

Taiwan

An island nation in East Asia, known for its modern cities, traditional Chinese temples, and rugged mountain landscapes.

Cultural Institution

A cultural institution is an organization that preserves, promotes, or presents cultural heritage, arts, or knowledge, such as museums, libraries, and theaters.

Social Institution

An organized structure and mechanism of social order and cooperation governing the behavior of a set of individuals within a given community.