We use this type of data for a z-test.

Group of answer choices

means

proportions

contingency table

discrete

We want to test that the true proportion of American's that recycle is greater than 40%. What type of test should we use?

Group of answer choices

Single sample z-test

Single sample t-test

Two sample z-test

ANOVA

We want to determine whether the true average credit card debt is different for men and women. What type of test should we use?

Group of answer choices

Two sample t-test

Single sample t-test

Two sample z-test

ANOVA

How large does a contingency table need to be for statistical analysis?

Group of answer choices

at least 2 rows, 2 columns (2x2)

at least 2x3

at least 4x2

at least 10x10

We want to determine if the percent of home runs hit by left-handed batters is greater than that of right-handed batters. What type of test should be used?

Group of answer choices

Two sample z-test

Two sample t-test

Single sample z-test

Single sample t-test

What are we trying to predict using a Regression Analysis

Group of answer choices

Independent variable

Dependent variable

the type of treatment

which replication

What test explains the strength and direction of a linear relationship between two variables?

To use regression analysis, the data type for the variables that are required are

Group of answer choices

Both discrete

Independent variable is discrete, dependent variable is continuous

Independent variable is continuous, dependent variable is discrete

Both continuous

If we have a variable with more than two groups/categories, what test should we use?

Group of answer choices

t-test

z-test

ANOVA

Chi Square test for independence

What type of variable should the dependent variable be for an ANOVA?

Group of answer choices

Qualitative

Discrete

Continuous

Binary