Use the Following Information to Answer the Question

question 28

Multiple Choice

Use the following information to answer the question. A statistics professor is interested in learning whether there is a positive association between number of posts by online students on a message board and the final class average in an online statistics course. The computer output below shows the results from a regression model in which the final class average was predicted by the number of message board posts. Assume that the conditions of the linear regression model are satisfied.

-Choose the correct null and alternative hypothesis to test whether there is an association between final class average and number of message board posts.

• A)H0: There is a linear association between the number of message board posts and the final class average. H_a: There is no linear association between the number of message board posts and the final class average.
• B)H0: The correlation is positive. Ha: The correlation is zero.
• C)H0: There is no linear association between the number of message board posts and the final class average. H_a: There is a positive linear association between the number of message board posts and the final class average.
• D)None of these.

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Definitions:

Background Characteristics

Refers to the various personal, social, and cultural attributes an individual brings to an organizational context, such as education, experience, and demographics.

Norms of Behavior

Norms of behavior refer to the standard or expected ways of acting within a particular society, group, or culture.

Mature Group

A group that has developed advanced levels of cohesion, communication, and functionality, effectively managing tasks and interpersonal relationships.

Functional Diversity

A concept that emphasizes the benefits arising from a variety of skills, experiences, and perspectives within a team or organization.