Show:
Probability
Inference
Describing Data
Sampling
Miscellaneous
100
If outcomes are disjoint, they cannot be _________.
What is independent
100
Action when the p value is less than the alpha value
What is rejecting the null hypothesis
100
The five number summary
What is minimum, Q1, median, Q3, maximum
100
a controlled study in which the researcher attempts to understand cause-and-effect relationships
What is an experiment
100
The calculator function to find a z-score
What is INVNORM(
200
The probability of a sample space
What is 1
200
The degrees of freedom for a t-distribution
What is n-1
200
The four variables that must be addressed when describing graphs
What is shape, center, spread, outliers
200
a type of bias where some groups are left out of the process
What is undercoverage bias
200
The direction the mean is pulled in with skewed data
What is in the direction of the tail
300
The standard deviation of a binomial model
What is √(npq)
300
Actions that narrow the margin of error
What is increase sample size and use a lower confidence level
300
an assessment of strength and direction of a linear relationship
What is r (correlation coefficient)
300
a bias where people choose themselves to participate
What is voluntary response bias
300
2 resistant variables
What is median and standard deviation
400
The equation for conditional probability
What is P(A∩B)/P(B)
400
Inference test for a categorical variable with one population and 2 questions
What is chi-squared test of independence
400
Another term for the 50th percentile
What is median
400
a technique that helps reduce variability between groups
What is blocking
400
an outlier that greatly affects the slope of the regression line
What is influential point
500
The law that the higher n is, the probability will be closer to the theoretical probability.
What is the Law of Large Numbers
500
Probability of a type II error
What is Beta
500
how spread out a set of data is
What is varibaility
500
a design where units are placed together and evaluated before and after the treatment
What is matched pairs design
500
the process of finding a value outside a data set
What is extrapolation