What are the basic assumptions or requirements that must be met to conduct a t-test?

What are the basic assumptions or requirements that must be met to conduct a t-test?

The conditions required to conduct the t-test include the measured values in ratio scale or interval scale, simple random extraction, normal distribution of data, appropriate sample size, and homogeneity of variance.

What are the assumptions of the one-sample t test?

Assumptions

• Assumption #1: Your dependent variable should be measured at the interval or ratio level (i.e., continuous).
• Assumption #2: The data are independent (i.e., not correlated/related), which means that there is no relationship between the observations.
• Assumption #3: There should be no significant outliers.

What are assumptions made when conducting a t-test?

T-Test Assumptions. The first assumption made regarding t-tests concerns the scale of measurement. The assumption for a t-test is that the scale of measurement applied to the data collected follows a continuous or ordinal scale, such as the scores for an IQ test. The second assumption made is that of a simple random sample,…

When does a graph not represent a function?

The x x value of a point where a vertical line intersects a function represents the input for that output y y value. If we can draw any horizontal line that intersects a graph more than once, then the graph does not represent a function because that y y value has more than one input.

What are the assumptions in the bell curve?

The Bell Curve begins with fundamental and important assumptions, makes assertions (supported by the author’s evidence), draws conclusions based on statistical analysis of the evidentiary data, and concludes with wide-ranging recommendations for national policy-makers to follow.

How to graph a function in a toolkit?

Match each graph with the corresponding function type. [more..] In this exercise, you will graph the toolkit functions using an online graphing tool. Graph each toolkit function using function notation. Make a table of values that references the function and includes at least the interval [-5,5].