author: manfred stommel

Statistics for Advanced Practice Nurses and Health Professionals

... symbol is customarily used to denote the sample mean. Later, we encounter the Greek letter μ as the symbol for the population ... median only involves rank-ordering of all values, but the actual median is either the exact value of the (n + 1)/ ...

Clinical Research: Concepts and Principles for Advanced Practice Nurses

... ANOVA test statistic . The F ratio is the ratio of the sys- tematic or between - group variance ( BGSS / K - 1 ) to error or within - group variance ( WGSS / n - K ) . It is now clear that the greater the differences between the group ...

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