THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 108

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
You want to explore the relationship between the scores students receive on their first quiz and their first exam.You believe that there is a positive correlation between the two scores.
-What is the appropriate decision rule?

• A)reject H₀ if r(n - 2)/ (1 - r²)> t_n-2,α
• B)reject H₀ if r / > t_n-2,α
• C)reject H₀ if r(n - 2)/ > t_n-2,α
• D)reject H₀ if r(n - 2)/ > t_n-2,α/2

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Definitions:

Singlet

A term used in quantum mechanics and spectroscopy to describe a state in which all electrons in an atom or molecule are spin-paired, showing no magnetic field external to the system.

Doublet

In spectroscopy, a pattern indicating two closely linked energy levels or particles, often seen in NMR or EPR spectroscopy.

NMR

Nuclear Magnetic Resonance, a spectroscopic technique used to study the structure of molecules by observing the interaction of nuclear spins with magnetic fields.

IR

Infrared spectroscopy, a technique used to identify molecular structures based on their absorption of infrared light, which causes molecular vibrations.