Bio 112 Lab Test 2 Review

Use if you want to ask whether the frequencies of individuals in specific categories are significantly different than the frequencies you would expect to find based on a hypothesis. This test analysis is appropriate to use with a categorical variable.

• Two-Sample T-Test

• One-way ANOVA

• Linear Regression

• Chi Square Test

Use if you want to ask whether the value of your independent variable predicts the value of your dependent variable. This test analysis is appropriate when both your independent and dependent variables are numeric and when you expect a range of values from each.

• Two-Sample T-Test

• One-way ANOVA

• Linear Regression

• Chi Square Test

Use if you want to ask whether values of a numeric variable measured for more than two groups are significantly different. To be more specific, this test allows you to test the null hypothesis that the mean value of a numeric dependent variable is the same for multiple groups.

• Two-Sample T-Test

• One-way ANOVA

• Linear Regression

• Chi Square Test

Use if you want to ask whether values of a numeric variable measured for two groups are significantly different. To be more specific, this test allows you to test the null hypothesis that the mean value of a numeric dependent variable is the same for two groups.

• Two-Sample T-Test

• One-way ANOVA

• Linear Regression

• Chi Square Test

When measuring these variables, you get numbers.

• Independent variable

• Dependent variable

• Numeric variable

• Categorical variable

Involves classifying into separate categories

• Independent variable

• Dependent variable

• Numeric variable

• Categorical variable

Variable whose variation does not depend on another. Also represented by the x axis.

• Independent variable

• Dependent variable

• Numeric variable

• Categorical variable

Variable whose variation does depend on another. Also represented by the y axis.

• Independent variable

• Dependent variable

• Numeric variable

• Categorical variable

Which species have digestion opened on two ends?

• Arthropods

• Mollusks

• Chordates

• Cnidarians

Which of these have a mesoderm?

• Arthropods

• Mollusks

• Chordates

• Cnidarians