BIOSTATS - Finals

Chi-Square Test of Independence

Identify the statistical test used to determine if there is a significant relationship between two categorical variables.

Correlation Coefficient

Identify the statistical measure used to determine the strength of the linear relationship between two variables.

Positive correlation

Identify the type of relationship when both variables increase or decrease together.

Negative correlation

Identify the type of relationship when one variable increases while the other decreases.

Scatter Plot

Identify the graphical method used to show the relationship between two variables.

Coefficient of Determination

Identify the term used to describe the proportion of the variance in one variable that is predictable from the other variable.

Analysis of Variance

Identify the statistical method used to test the equality of three or more population means simultaneously.

One-Way ANOVA

Identify the type of ANOVA where only one factor or independent variable is studied.

All population means are equal

Identify the null hypothesis in ANOVA.

At least two of the population means are not equal

Identify the alternative hypothesis in ANOVA.

F-statistic

Identify the test statistic used in ANOVA.

• The populations are independent.

• Each population is normally distributed.

• The populations have equal variances.

Identify the assumptions of ANOVA.