We Draw a Random Sample of Size 25 from the Normal

question 55

Multiple Choice

We draw a random sample of size 25 from the normal population with the variance 2.4.If the sample mean is 12.5,what is a 99% confidence interval for the population mean?

• A)[11.2600,13.7400]
• B)[11.3835,13.6165]
• C)[11.7019,13.2981]
• D)[11.7793,13.2207]

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Definitions:

Conservation

The understanding in child development that quantity does not change despite changes in form or appearance, also applies to environmental preservation efforts.

Assimilation

Assimilation refers to the cognitive process of integrating new information into existing frameworks or schemas.

Authoritative Style

A parenting approach characterized by high responsiveness and high demands, aiming to foster independence while maintaining limits and control.

Egocentric

The inability to differentiate one's personal perspective from someone else's.