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Instructions: Choose one answer from each pair of selections. Peak ozone (O3) concentrations are found in the stratosphere near 25 km altitude. Would you expect to find the highest molecular oxygen (O2) concentrations at HIGHER or LOWER altitude?
Degrees of Freedom
Refers to the number of scores in a calculation that are free to vary when estimating a parameter.
Calculating
The action of performing mathematical operations to determine a result.
Significant Correlations
Relationships between variables that are strong enough to unlikely be due to chance, as determined by statistical tests.
Test Statistic
A value calculated from sample data that is used in statistical hypothesis testing to determine whether to reject the null hypothesis.
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