Instruction 10-9 A Corporation Randomly Selects 150 Salespeople and Finds That 66

question 111

Multiple Choice

Instruction 10-9
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 Instruction 10-9,what is the value of the test statistic to use in evaluating the alternative hypothesis that there is a difference in the two population proportions?

• A)0
• B)1.96
• C)1.093
• D)4.335

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Definitions:

CAM Plants

Plants that use Crassulacean Acid Metabolism, a photosynthetic adaptation to arid conditions, allowing them to minimize water loss.

Stomata

Tiny openings or pores in plant leaves and stems that facilitate gas exchange.

Carbon-fixing

The process of converting atmospheric carbon dioxide into molecules usable by living organisms, critical in the global carbon cycle.

Polar Ice Cap

A large area of thick ice covering the North Pole, South Pole, or both, significantly influencing the Earth's climate.