SCENARIO 11-3 As Part of an Evaluation Program,a Sporting Goods Retailer Wanted

question 27

Multiple Choice

SCENARIO 11-3
As part of an evaluation program,a sporting goods retailer wanted to compare the downhill coasting speeds of 4 brands of bicycles.She took 3 of each brand and determined their maximum downhill speeds.The results are presented in miles per hour in the table below.

-Referring to Scenario 11-3,what should be the conclusion for the Levene's test for homogeneity of variances at a 5% level of significance?

• A)There is insufficient evidence that the variances are all the same.
• B)There is sufficient evidence that the variances are all the same.
• C)There is insufficient evidence that the variances are not all the same.
• D)There is sufficient evidence that the variances are not all the same.

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Definitions:

Concrete-operational Level

A stage in Piaget's theory of cognitive development where children, typically aged 7 to 12, develop logical thought but still struggle with abstract concepts.

Horizontal Décalage

The variation in the development of similar cognitive abilities that occur at different rates within the same stage of development.

Socially Based Speech

Communication that is influenced by or involves interactions with others, reflecting social contexts and relationships.

Lev Vygotsky

A Russian psychologist known for his work on cognitive development, particularly the concept of the Zone of Proximal Development.