A Shipping Firm Suspects That the Variance for a Certain

question 98

Essay

A shipping firm suspects that the variance for a certain brand of tire used by its trucks is greater than 1,000,000.To check the claim, the firm puts 101 of these tires on its trucks and gets a standard deviation of 1200 miles. Atα = 0.05, test the shipping firmʹs claim.

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Definitions:

Framingham

A city in Massachusetts known for the Framingham Heart Study, a long-term, ongoing cardiovascular cohort study.

Testable

Testable describes a hypothesis or theory that can be empirically examined through experimentation or observation, allowing for verification or falsification.

Critical Period

A specific time in early development during which the organism is particularly receptive to certain stimuli, often resulting in permanent, irreversible outcomes.

Cohort

A group of people who share a common characteristic or experience within a defined period, often used in statistical and sociological research.