A Random Sample of Size 30 from a Normal Population $\bar { x }$

question 146

Essay

A random sample of size 30 from a normal population yields
$\bar { x }$
= 32.8 and s = 4.51.Construct a 95 percent confidence interval for $\mu$
.

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Definitions:

Reasoning

The process of thinking about something in a logical way to form a conclusion or judgment.

Egocentric Thought

a cognitive perspective where an individual perceives the world solely from their own point of view, often seen in early childhood development.

Conservation

In psychological terms, it refers to a child's ability to recognize that the quantity of a substance remains the same despite changes in its shape or container.

Centrated Thinking

A type of thought process in early childhood development where the child focuses on one salient aspect of a situation, neglecting other important factors.