A Researcher Administered a Scale Measuring Concern for Farm Workers

question 102

Essay

A researcher administered a scale measuring concern for farm workers (high scores mean high concern)to seven students before and after they attended a film about union organization of farm workers. Results are shown below.
Scores on the Concern Measure, Before and After Film
Do these results support the hypothesis that the film affected concern for the lives of farm workers? (Use the .05 level.)
a. Use the five steps of hypothesis testing
b. Figure the effect size and find the approximate power of this study.

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Definitions:

Singlet

A term in spectroscopy describing a state with all electron spins paired, resulting in no net electron spin.

NMR Data

Information derived from nuclear magnetic resonance spectroscopy, providing insights into the molecular structure, dynamics, reaction state, and chemical environment of molecules.

Doublet

A pattern, especially in spectroscopy, where a signal is split into two components with a small separation, indicating the interaction between nuclear spins.

Multiplet

A pattern in NMR spectroscopy composed of closely spaced spectral lines, indicating the presence of coupling between nuclear spins.