Aptitude Test Scores Two random samples of 40 students were drawn independently from two populations of students. Assume their aptitude tests are normally distributed (total points = 100). The following statistics regarding their scores in an aptitude test were obtained: 
. {Aptitude Test Scores Narrative} Estimate with 95% confidence the difference between the two population means.
Definitions:
Practical Intelligence
A facet of intelligence that involves the ability to solve everyday problems by utilizing knowledge gained from experience in order to effectively deal with the tasks and challenges encountered in daily life.
Analytical Intelligence
One of the three types of intelligence in Robert Sternberg's Triarchic Theory of Intelligence, focusing on problem-solving abilities.
Creative Intelligence
Refers to the ability to successfully manage new situations using past experiences and current skills.
Postmaterialism
A theory suggesting that people in advanced industrial societies prioritize self-expression and quality of life over economic and physical security.
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