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TABLE 10-10 A Corporation Randomly Selects 150 Salespeople and Finds That 66

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TABLE 10-10
A corporation randomly selects 150 salespeople and finds that 66% who have never taken a self-improvement course would like such a course. The firm did a similar study 10 years ago in which 60% of a random sample of 160 salespeople wanted a self-improvement course. The groups are assumed to be independent random samples. Let π₁ and π₂ represent the true proportion of workers who would like to attend a self-improvement course in the recent study and the past study, respectively.
-Referring to Table 10-10, construct a 99% confidence interval estimate of the difference in proportion of workers who would like to attend a self-improvement course in the recent study and the past study.

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Definitions:

Lysenko

A controversial figure in the history of Soviet biology, Trofim Lysenko rejected Mendelian genetics in favor of his own agricultural theories, leading to widespread agricultural disaster.

Natural Selection

A fundamental mechanism of evolution where organisms better adapted to their environment are more likely to survive and reproduce.

Evolutionary Theory

A scientific theory that explains the diversity of life on Earth by proposing that life evolves over time through processes of natural selection and genetic variation.

Common Ancestor

The most recent individual from which all organisms in a group are directly descended.

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