The Heating Bills for a Selected Sample of Houses Using $\alpha$

question 29

Essay

The heating bills for a selected sample of houses using various forms of heating are given below.(Values are in dollars. )

a.At $\alpha$ = 0.05,test to see if there is a significant difference among the average heating bills of the homes.Use the p-value approach.
b.Test the above hypotheses using the critical value approach.Let $\alpha$ = .05.

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Definitions:

Negative Relationship

A type of correlation where one variable increases as the other decreases, indicating an inverse relationship between the two.

Correlation

A statistical measure that describes the extent to which two variables change together, but does not necessarily indicate causation.

Research Method

The systematic plan, strategy, and approach that scientists and scholars use to gather, analyze, and interpret data and information to uncover new knowledge.

Self-fulfilling Prophecy

A prediction or expectation that causes itself to become true, due to the feedback between belief and behavior.