State University Uses Thousands of Fluorescent Light Bulbs Each Year $\bar { x } = 778$

question 16

Essay

State University uses thousands of fluorescent light bulbs each year. The brand of bulb it currently uses has a mean life of 760 hours. A competitor claims that its bulbs, which cost the same as the brand the university currently uses, have a mean life of more than 760 hours. The university has decided to purchase the new brand if, when tested, the evidence supports the manufacturer's claim at the .01 significance level. Suppose 92 bulbs were tested with the following results: $\bar { x } = 778$ hours, $s = 91$ hours. Find the rejection region for the test of interest to the State University.

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Definitions:

Social Informational

Relating to the process by which individuals acquire knowledge, attitudes, or behaviors through observing and interacting with others in their social environment.

Emotional Support

Assistance given to someone, typically providing reassurance, acceptance, and encouragement during times of stress.

Autonomous

The capacity to make decisions independently, free from external control or influence, often highlighting self-governance.

Orienting Principles

Fundamental concepts or assumptions that guide thinking, research, or policy in various fields.