Instruction 15-1 A Large Organization Randomly Selects 150 Employees and Finds That

question 35

Multiple Choice

Instruction 15-1
A large organization randomly selects 150 employees and finds that 66% who have never taken a professional-development course would like such a course. The firm did a similar study 10 years ago in which 60% of a random sample of 160 employees wanted a professional-development 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 professional-development course in the recent study and the past study, respectively.
-Referring to Instruction 15-1,what is the critical value when performing a chi-square test on whether population proportions are different if α = 0.05?

• A) ± 1.645
• B) ± 1.96
• C) 2.706
• D) 3.842

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Definitions:

Endochondral

Endochondral ossification is the process by which cartilage is replaced by bone in the vertebrate skeletal system, essential for the formation of long bones and most of the skeleton.

Basic Multicellular Unit

Functional unit involved in the remodeling of bone tissue, comprising of osteoclasts and osteoblasts.

Osteoblast Activity

The process of bone formation carried out by osteoblasts, cells that synthesize bone matrix and mineral content.

Osteoclast Activity

The process involving cells responsible for bone resorption in the body's bone remodeling cycle.