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15 Cards in this Set
 Front
 Back
alpha

symbol used to represent the probability of a Type 1 error. Also called the significance level of the hypothesis test. Denoted by the Greek letter alpha.


alternative hypothesis

statement that is equivalent to the negation of the null hypothesis, denoted by Hsuba


beta

sybol used to represent the probability of a Type 2 Error. Denoted by the Greek letter beta


biased sample

a smaple for which some type of systematic error has been made in the selection of subjects for the sample


binomial experiment

a probability experiment in which each trialhas only two outcomes, there is a fixed number of trials, the outcomes of the trials are independent, and the probability of success remains the same for each trial.


bivariate data

data arranged in pairs


blinding

procedure used in experiments whereby the subject doesn't know whether he or she is receiving a treatment or a placebo


boxplot

a graphical representation of the five number summary


categorical data

data that can be separated into different categories that are distinguished by some nonnumeric characteristic


census

collection of data from every element in the population


central limit theorem

a theorem that states that as the sample size increases, the shape of the distribution of the sample means taken from the population with mean (come back and edit later)


cluster sampling

a sample obtained by dividing the population area into sections (or clusters), then randomly selecting a few of those sections and then choosing ALL of the members of those selected sections


coefficient of the determinant

a measure of the variation of the dependent variation that is explained by the regression line and the indpendent variable; the ratio of explained variation to total variation


complement of an event

all outcomes in which the event does not occur
P(~A)=1P(A) 

completely randomized design

procedure in an experiment whereby each element is given teh same chance of belonging to the different categories or treatments
