The Weight of a Product Is Measured in Pounds

question 70

Multiple Choice

The weight of a product is measured in pounds.A sample of 50 units is taken from a recent production.The sample yielded = 75 lb,and we know that σ² = 100 lb.Calculate a 95 percent confidence interval for μ.

• A) [71.25,78.75]
• B) [72.23,77.77]
• C) [47.28,102.72]
• D) [72.67,77.33]

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Definitions:

Cognitive Psychology

The study of mental processes like perception, memory, thought, and problem-solving.

Acquire Knowledge

The process of learning or gaining information, understanding, and skills from experience, education, or instruction.

Preattentive Process

The subconscious accumulation of information from the environment, which occurs without conscious effort or attention.

Attentive Process

The cognitive function that enables an individual to focus selectively on certain information while ignoring other stimuli.