A Company Believes That It Controls More Than 30% of the Total

question 6

Multiple Choice

A company believes that it controls more than 30% of the total market share for one of its products.To prove this belief,a random sample of 144 purchases of this product is contacted.It is found that 50 of the 144 purchased this company's brand of the product.If a researcher wants to conduct a statistical test for this problem,the observed z value would be _______.

• A) 0.05
• B) 0.103
• C) 0.35
• D) 1.24
• E) 1.67

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Definitions:

Premature Closure

The process of making a decision or arriving at a conclusion before all the necessary and relevant information has been considered.

Unscientific Thinking

Reasoning or beliefs not based on or contradicting established scientific methods and principles.

Subjective Observation

The collection of data based on personal judgments, feelings, or opinions, rather than objective measurement.

Objectivity

Is assessed by the degree of consistency between the observations of independent observers.