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
This phrase is used to describe an observed effect so large that it would rarely occur by chance.
What is statistically significant?
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 1-sample t-test?

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 type of sampling that is easiest for the researcher and ofter creates unintended bias. 

What is convenience sampling?

200
The type of variable where the probability distribution assigns probability as the area under the density curve above a specific interval.
What is a continuous random variable?
200

The formula to calculate the one-sample t statistic.

What is t = (x bar minus mu sub o) divided by (s divided by the square root of n) ?

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

The conditions to use this test include that all expected counts are at least 5.

What is the goodness of fit (or chi-square) test?

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 control, randomization, comparison, and replication?

400

The condition involving the population size that must be satisfied to use sigma divided by the square root of n as the standard deviation of a sampling distribution.

What is the 10% rule ('the population is at least 10 times the sample size')?

400

Three of the conditions to be verified for inference about a difference in proportions (2-prop z-test).

What are the 10% rule for both (population sizes be greater than or equal to 10n),  p-hat sub c * n1, q-hat sub c * n1, p-hat sub c * n2, and q-hat sub c * n2 are all greater than or equal to 10, and random samples for both.

500
This calculator command can be used to find the area under a normal distribution and above an interval.
What is normalcdf?
500

Two graphs to explore the relationship between two categorical variables.

What are a segmented bar graph and a mosaic plot?

500

A process in an experiment that allows a person to make causal statements about statistically significant results.

What is random assignment?

500

The shape, center, and spread of the sum of two independent random variables that are normally distributed.

What is Normal, mu-sub x + mu-sub y, and the square root of (sigma-sub x squared + sigma-sub y squared)?

500

b +/- t*SE sub b

What is the confidence interval for slope beta of a true regression line?

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