Do Heavier Cars Use More Gasoline? to Answer This Question,a

question 14

Multiple Choice

Do heavier cars use more gasoline? To answer this question,a researcher randomly selected 15 cars.He collected their weight (in hundreds of pounds) and the mileage (MPG) for each car.From a scatter plot made with the data,a linear model seemed appropriate.The following output was obtained from SPSS: What is a 95% confidence interval for the slope ₁?

• A)(-0.875,-0.167)
• B)(-0.685,-0.357)
• C)(-1.04,0.001)
• D)(26.89,53.99)

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Definitions:

Groupthink

A phenomenon where the desire for harmony or conformity in a decision-making group leads to an irrational or dysfunctional outcome.

Directive Group Leader

A leader in a group setting who guides, structures, and directs the group's activities and discussions.

Group Polarization

The tendency for a group to make decisions that are more extreme than the initial inclination of its members.

Risky Shift

The tendency for groups to make decisions that are more extreme or riskier than the initial inclination of its members.