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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
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 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

When all subjects receive both treatments.

What is matched pairs experiment?

200

The percent below a certain point on a density curve.

What is a percentile?

200

The formula to calculate expected value on a two-way table for a chi-square test

What is (row total)(column total)/(table total)?

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 percent of the variability in y that can be explained by the LSRL 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 all expected counts be greater than or equal to 5, random, and independence.

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

400
The square of the standard deviation.
What is the variance?
400

Failing to reject the null hypothesis when you should have (Guilty person walks free).

What is a Type II Error?

400
The 3 basic principles of experimental design.
What are control, randomize, and replicate?
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 population is at least 10 times the sample size'?
400

Two of the conditions to be verified for inference about a proportion.

What are 

(1) the population size be greater than or equal to 10n (10% condition)

(2) (n)(p-hat) & (n)(1 - p hat) be greater than or equal to 10 (Large Count Condition)

(3) SRS (Random)

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

Using the LSRL to predict y-values for x-values outside the range of the original data. 

What is extrapolation?

500

The scope of inference for experiments and observational studies

What are cause and effect for experiments and inferences about the population for observational studies?

500

One of two formulas to prove two events are independent.

What is P(A and B) = P(A) x P(B) or P(B|A)=P(B).

500
b +/- t*SE sub b
What is the confidence interval for slope beta of a true regression line?