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Organizing Data
Data Relationships
Producing Data & Experiments
Probability & Distributions
Inference & Tests
100
This measure of center is more resistant to outliers than the mean.
What is the median?
100
observed y - predicted y
What is the residual?
100

What are the four types of bias we have studied?

What is response, non-response, measurement, and voluntary response?

100
This type of random variable requires a fixed number of trials.
What is a binomial random variable?
100

The type of significance test used for the mean of a single population when the standard deviation of the population is unknown.

What is a T test (or T procedure)?

200
To calculate, subtract the mean of the distribution from the observed x, then divide by the standard deviation.
What is the z-score (or standardized value)?
200
Measures the direction and strength of a linear relationship between two quantitative variables.
What is correlation (or r)?
200

A variable that is not of interest to the study, but may effect the outcome. 

What is a confounding variable?

200
The definition of an expected outcome of a random variable is.. 

What is the mean or average?

200

The margin of error is...

What is half the width of the confidence interval?

300
This rule helps to determine if data is normally distributed by checking the number of observations within each interval.
What is the 68-95-99.7 rule?
300
The fraction of the variables in the values of y that is explained by the LSR of y on x.
What is the coefficient of determination (or r squared)?
300

This experimental design involves the random assignment of units to treatments which are carried out separately within each group of units known to be similar in some way that is expected to affect the responses.

What is block design?

300

Events that have no outcomes in common and can never occur simultaneously, for which the addition rule is used.

What are disjoint events (or mutually exclusive events)?

300

Test used to measure the association between categorical variables with multiple categories per population.

What is the chi square test of independence?

400
The square of the standard deviation.
What is the variance?
400
Applying a logarithmic transformation to both variables causes this type of model to become linear.
What is a power model?
400

The 4 basic principles of experimental design.

What are blocking, direct control, randomize, and replicate?

400

What rule states if the sample size is greater than 30, then the sampling distribution is approximately normal.

What is the central limit theorem

400

Two of the conditions to be verified for inference about a proportion (showing normality).

What are....

np greater than or equal to 10 and 

n(1-p) greater than or equal to 10

500
This calculator command can be used to find the area under a normal distribution and above an interval.
What is normalcdf?
500
Refers to the reversal of the direction of a comparison or an association when data from several groups are combined to form a single group.
What is Simpson's Paradox?
500

What is the difference between a parameter and a statistic?

A parameter is any value used to describe a population value, and a statistic is any value used to or calculated from a sample. 

500

The critical value for a 92% T-Interval is... 

What is ...

500

b +/- t*SE sub b

What is the formula for linear regression t-interval?