The Average Cost of Remodeling One Room in a House

question 137

Essay

The average cost of remodeling one room in a house was compared for four different remodeling companies.A random sample of 10 rooms remodeled by each company were selected all with the same square footage,and cost of remodeling each room was recorded.(Rooms were randomly chosen from different houses.)The data are shown below.An F-test using ANOVA concluded that average costs differ for at least two of the remodeling companies. Use Tukey's and LSD multiple comparison methods to determine which remodeling companies differ in their average cost.Compare the results and discuss.(Keep the experimentwise Type I error at or close to 5%.)

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Definitions:

Creditor Beneficiary

A third party that benefits from a contract between two other parties, particularly when one party promises to pay a debt owed to the creditor beneficiary by the other party.

Legal Duty

An obligation imposed by law upon an individual or entity to act or refrain from acting in a certain manner.

Donee Beneficiary

A third party beneficiary to a contract who receives a benefit from the contract as a gift.

Promisor

The person or party in a contract who has made a promise to perform or refrain from performing a certain act.