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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

the systematic tendency to overestimate or underestimate the true population parameter

What is bias?

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 to estimate the mean of a single population

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 collection of experimental units that are either not given a treatment of interest or given a treatment with an inactive substance (placebo)

What is a control group?

200

states that simulated probabilities tend to get closer to the true probability as the number of trials increases

What is the Law of Large Numbers?

200
The formula to calculate the one-sample z statistic.
What is z = (x bar minus mu sub o) divided by (sigma 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 (Empirical) 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

occurs when the null hypothesis is true and is rejected

What is a Type I Error? 

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

point in regression has a substantially larger or smaller x-value than the other observations have

What is a high leverage point?

400

a variable that is related to the explanatory variable and influences the response variable and makes it challenging to determine cause and effect

What is a confounding variable? 

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 the population size be greater than or equal to 10n and n times p hat & n times (1 - p hat) be greater than or equal to 10? (SRS could also be one of the two)
500
This calculator command can be used to find the area under a normal distribution and above an interval.
What is normalcdf?
500

For every one unit increase in x, the predicted amount of increase or decrease in y. 

slope of the regression line

500

these types of conclusions can be made when random assignment of treatments occurs 

What are cause-and-effect conclusions? 

500
The formula to determine the variance for a discrete random variable with three possible values.
What is sigma sub x squared = (the square of the difference between x sub 1 and mu multiplied by p sub 1) + (the square of the difference between x sub 2 and mu multiplied by p sub 2) + (the square of the difference between x sub 3 and mu multiplied by p sub 3) ?
500

When estimating a population parameter, a statistic has this characteristic if the center of the sampling distribution for the statistic is equal to the population parameter.

What is an unbiased estimator?