A Research Analyst Believes That a Positive Relationship Exists Between

question 87

Multiple Choice

A research analyst believes that a positive relationship exists between a firm's advertising expenditures and its sales.For 65 firms,she collects data on each firm's yearly advertising expenditures and its sales.She calculates a Spearman rank correlation coefficient of 0.45.At the 5% confidence level,which of the following is the correct conclusion about the relationship between advertising and sales? _________

• A) Reject the null hypothesis;we cannot conclude that the advertising and sales are related.
• B) Do not reject the null hypothesis;conclude that the advertising and sales are related.
• C) Reject the null hypothesis;conclude that the advertising and sales are related.
• D) Do not reject the null hypothesis;we cannot conclude that the advertising and sales are related.

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Definitions:

Education

The systematic process of facilitating learning, acquiring knowledge, skills, values, and beliefs through various means such as schooling, training, or research.

Hearing Deficits

A range of conditions where there is a decrease in the ability to perceive sounds as compared to the normal levels.

Position Changes

Alterations in the positioning of a body or body part, often recommended to relieve pressure or improve comfort.

Sense of Modesty

An awareness or attitude that leads one to be reserved or modest in behavior, dress, or speech.