WGU C207 STUDY GUIDE MODULE 3 & 4
QUESTIONS AND ANSWERS ALREADY
PASSED
trend ✔✔is a general direction in which something is developing or changing
analysis of variance (ANOVA) ✔✔verifies if multiple populations of da
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WGU C207 STUDY GUIDE MODULE 3 & 4
QUESTIONS AND ANSWERS ALREADY
PASSED
trend ✔✔is a general direction in which something is developing or changing
analysis of variance (ANOVA) ✔✔verifies if multiple populations of data are the same or at least
one is different than the others.
cyclicality ✔✔describes results that go up and down periodically, but don't necessarily follow the
calendar
homoscedasticity ✔✔assumes that the variance of a dependent variable is consistent across the
range of values
median ✔✔is the midpoint value of a group of measurements
statistical population ✔✔is a group of observations that have something in common
mean ✔✔is the average of a group of measurements
heteroscedasticity ✔✔is the assumption that the variance of a dependent variable changes across
the range of values
dependent variable ✔✔is calculated from the value of the other variables in an equation
irregularity ✔✔occurs when there is a one-time unusual measurement in a process
seasonality ✔✔describes variability in a process that occurs at the same time of year each year
autocorrelation ✔✔describes events whose probability of occurring depends upon the events that
occurred previously
random variation ✔✔describes the variability that occurs in events for which we have no
explanation
independent variable ✔✔is a variable in an equation to which we can assign a specific value
outlier ✔✔is a measurement that is very different than other measurements of similar events
mode ✔✔is the most common measurement of a group of events
T ✔✔Linear Programming finds a maximum or minimum solutions in a situation that has various
constraints
T ✔✔If we are analyzing which among three equipment options for a new office would be the best
choice, we might use Crossover Analysis
F ✔✔In a Crossover Analysis considering three options, every crossover point is essential to our
analysis
F ✔✔Break-even Analysis requires only fixed and variable cost information
F ✔✔The Mean can be found on the left, middle or right portions of a Normal Curve
T ✔✔The Average and the Mean are synonyms
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