Exhibit 9-6 a Random Sample of 100 People Was Taken. Eighty of Eighty

question 4

Essay

Exhibit 9-6
A random sample of 100 people was taken. Eighty of the people in the sample favored Candidate A. We are interested in determining whether or not the proportion of the population in favor of Candidate A is significantly more than 75%.
-At a local university, a sample of 49 evening students was selected in order to determine whether the average age of the evening students is significantly different from 21. The average age of the students in the sample was 23 years. The population standard deviation is known to be 3.5 years. Determine whether or not the average age of the evening students is significantly different from 21. Use a 0.1 level of significance.

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Definitions:

Reductive

Pertaining to or employing reduction; often referring to explanations or methods that simplify complex phenomena by breaking them down into their components.

Centration

A term from cognitive psychology describing a tendency in young children to focus on one aspect of a situation and neglect others.

Symbolic Play

A type of play where children use objects, actions, or ideas to represent other objects, actions, or ideas, reflecting their growing cognitive abilities.

Imagery

The use of visually descriptive or figurative language in writing, or the visual mental representation of objects, scenes, or events.