A Company Has Developed a New Power Cell and Wants

question 1

Multiple Choice

A company has developed a new power cell and wants to estimate its average lifetime.A random sample of 650 power cells is tested and the average lifetime of this sample is found to be 315 hours.The 315 hours is the value of a:

• A)parameter.
• B)statistic.
• C)sample.
• D)population.

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Definitions:

Attrition Effects

The impact on research findings from participants dropping out of a study over time, potentially biasing the results.

Generalize

To generalize means to make a broad statement or rule that applies beyond the original context, based on observations from specific examples.

Cognitive Task

refers to a specific activity or exercise designed to assess or enhance cognitive functions, such as memory, attention, or problem-solving skills.

External Validity

The degree to which the results of a study can be generalized or extended to other contexts, settings, or populations.