The equation to find this is observed y - predicted y
What is the residual?
When you assign numbers to your population, and then assign them to different groups by using a random number generator.
What is random sampling?
When the occurrence of one event affects the outcome of a second event. Example: selection without replacement.
What are dependent events?
What you do when the p-value is lower than the significance level.
What is reject the null hypothesis?
The measure of how far data tends to be from the mean.
What is Standard Deviation?
A residual plot that does not look this way is an indication that a linear relationship is not appropriate.
What is scattered?
A way you find the probability of two independent events happening consecutively; for example, the probability that you flip a coin and get heads followed by a roll of dice.
What is the multiplication rule?
When you separate your population into different groups based on something they have in common, and then randomly choose one or more subjects for each group.
What is stratified sampling?
The value that you both add to and subtract from your test statistic to create a confidence interval.
What is the margin of error?
The elements you need to cover when describing the distribution of a dot plot, stem-and-leaf plot, or histogram?
What is CUSS - Center, Unusual, Shape and Spread
The elements you need to include when describing the relationship in a scatter plot.
What is FUDS - Form, Unusual, Direction and Strength
A type of experiment where two identical subjects receive two different treatments, or one subject receives both treatments at different times.
What is matched pairs design?
The outcome of something NOT happening vs. the outcome that is does happen. Often calculated by subtracting the probability the event does happen from 1.
What is a complement?
The theorem that says that if a sample size is larger than 30, the sampling distribution will be normal.
What is the Central Limit Theorem?
The interpretation is, "The percentage of the relationship that can be attributed to a linear relationship."
What is the coefficient of determination (or r squared)?
The test you use to look for independence for values in a two-way table.
What is the Chi-Square Test for Independence?