A Manufacturer Claims That Its Televisions Have an Average Lifetime

question 44

Essay

A manufacturer claims that its televisions have an average lifetime of at least five years (60 months) with a population standard deviation of seven months. Eighty-one televisions were selected at random, and the average lifetime was found to be 59 months. With α = 0.025, is the manufacturer's claim supported?

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Definitions:

Racial Inequality

The unequal treatment or perceptions of individuals based on their race, leading to disparities in wealth, healthcare, education, and employment among other sectors.

Grandfather Clauses

Provisions that allowed individuals to bypass literacy tests, poll taxes, or other barriers to voting if their grandfathers had been eligible to vote, effectively disenfranchising many African Americans.

Enfranchised

Granted the right to vote or provided with a privilege, service, or access that was previously restricted.

Civil War

A war between factions or regions within the same country, often driven by political, ethnic, or religious disputes.