Motorcycle Repair Cost Motorcycle insurance appraisers examine motorcycles that have been involved in accidental collisions and estimate the cost of repairs. An insurance executive claims that there are significant differences in the estimates from different appraisers. To support his claim he takes a random sample of six motorcycles that have recently been damaged in accidents. Three appraisers then estimate the repair costs of all six motorcycles. The data are shown below. 
{Motorcycle Repair Cost Narrative} Can we infer at the 5% significance level that the executive's claim is true?
Definitions:
Interest Rate
The percentage charged on the total amount of borrowed money or paid on deposited funds, influencing the cost of loans and savings.
Initial Amount
The starting sum or value in financial transactions or calculations.
Stock Ownerships
The holding of shares in a company, which represents a claim on the company's assets and earnings.
Savings Accounts
Financial accounts that offer safe storage for customers' money with an interest-earning benefit, typically offered by banks and financial institutions.
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