WGU Data Driven Decision Making - C207 questions
with verified answers
80/20 rule Ans✓✓✓ states that 80% of quality management problems are the
result of a small number - about 20% - of causes
Activities (RBM stage) Ans✓✓✓ second step involves the process that converts
inputs to outputs (actions necessary to produces results - training, evaluating,
developing)
Alternative hypothesis Ans✓✓✓ The argument that either a sample is not equal
to, greater than, or less than the hypothesized null sample
Analysis of Variance (ANOVA) Ans✓✓✓ a technique used to determine if there is
a sufficient evidence from sample data of three or more populations to conclude
that the means of the population are not all equal
Analytics Ans✓✓✓ The discovery, analysis, and communication of meaningful
patterns in data.
Association and causality Ans✓✓✓ This statistical misuse occurs when a
researcher notices a relationship between two variables and assumes that one
variable is the cause of the other. In reality, these variables might both be caused
by a separate variable. In this case, they would merely be correlated, which
means they show up together. Or there might be no relationship at all.
Autocorrelation Ans✓✓✓ A relationship between two variables that is inherently
non-linear
,Balanced Scorecard Ans✓✓✓ An approach using multiple measures to evaluate
performance, including financial measures, and the non-financial measures of
customers, internal business processes, and learning and growth.
Bar chart Ans✓✓✓ A graph that measures the distribution of data over discrete
groups or categories.
Bayes' Theorem Ans✓✓✓ A formula that calculates conditional probabilities,
important in understanding how new information affects the probabilities of
different outcomes.
Benchmarks Ans✓✓✓ Standards or points of reference for an industry or sector
that can be used for comparison and evaluation.
Big Data Ans✓✓✓ very large amounts of data; an all-encompassing term for any
collection of data sets so large and complex that it becomes difficult to process
them using traditional data processing applications
Blind Study Ans✓✓✓ A study performed where the participants are not told if
they are in the treatment group or control group
body mass index (BMI) Ans✓✓✓ A measure, based on a person's weight and
height, that is used to classify people as underweight or overweight.
Business process Ans✓✓✓ A sequence of logically related and time based work
activities to provide a specific output for a customer.
, Central Limit Theorem Ans✓✓✓ A theorem that states that, the greater the
sample, the closer the mean of the sample is to the entire population and the
more the results will look like a normal distribution
Chi-square test Ans✓✓✓ any statistical hypothesis test in which the sampling
distribution of the test statistic is a chi-square distribution when the null
hypothesis is true
Cluster Analysis Ans✓✓✓ The process of arranging terms or values based on
different variables into "natural" groups
cohort study Ans✓✓✓ A study that observes and follows people moving forward
in time from the time of their entry into the study.
Cointegration Ans✓✓✓ Occurs when two time series are moving with a common
pattern due to a connection between the two time series
Combination Ans✓✓✓ The number of different unordered possibilities for a
certain situation.
Complement Ans✓✓✓ The occurrence of an event not happening, the opposite
conditional probability Ans✓✓✓ the probability of an event occurring given that
another event has occurred
Confidence interval Ans✓✓✓ An interval estimate used to indicate reliability
with verified answers
80/20 rule Ans✓✓✓ states that 80% of quality management problems are the
result of a small number - about 20% - of causes
Activities (RBM stage) Ans✓✓✓ second step involves the process that converts
inputs to outputs (actions necessary to produces results - training, evaluating,
developing)
Alternative hypothesis Ans✓✓✓ The argument that either a sample is not equal
to, greater than, or less than the hypothesized null sample
Analysis of Variance (ANOVA) Ans✓✓✓ a technique used to determine if there is
a sufficient evidence from sample data of three or more populations to conclude
that the means of the population are not all equal
Analytics Ans✓✓✓ The discovery, analysis, and communication of meaningful
patterns in data.
Association and causality Ans✓✓✓ This statistical misuse occurs when a
researcher notices a relationship between two variables and assumes that one
variable is the cause of the other. In reality, these variables might both be caused
by a separate variable. In this case, they would merely be correlated, which
means they show up together. Or there might be no relationship at all.
Autocorrelation Ans✓✓✓ A relationship between two variables that is inherently
non-linear
,Balanced Scorecard Ans✓✓✓ An approach using multiple measures to evaluate
performance, including financial measures, and the non-financial measures of
customers, internal business processes, and learning and growth.
Bar chart Ans✓✓✓ A graph that measures the distribution of data over discrete
groups or categories.
Bayes' Theorem Ans✓✓✓ A formula that calculates conditional probabilities,
important in understanding how new information affects the probabilities of
different outcomes.
Benchmarks Ans✓✓✓ Standards or points of reference for an industry or sector
that can be used for comparison and evaluation.
Big Data Ans✓✓✓ very large amounts of data; an all-encompassing term for any
collection of data sets so large and complex that it becomes difficult to process
them using traditional data processing applications
Blind Study Ans✓✓✓ A study performed where the participants are not told if
they are in the treatment group or control group
body mass index (BMI) Ans✓✓✓ A measure, based on a person's weight and
height, that is used to classify people as underweight or overweight.
Business process Ans✓✓✓ A sequence of logically related and time based work
activities to provide a specific output for a customer.
, Central Limit Theorem Ans✓✓✓ A theorem that states that, the greater the
sample, the closer the mean of the sample is to the entire population and the
more the results will look like a normal distribution
Chi-square test Ans✓✓✓ any statistical hypothesis test in which the sampling
distribution of the test statistic is a chi-square distribution when the null
hypothesis is true
Cluster Analysis Ans✓✓✓ The process of arranging terms or values based on
different variables into "natural" groups
cohort study Ans✓✓✓ A study that observes and follows people moving forward
in time from the time of their entry into the study.
Cointegration Ans✓✓✓ Occurs when two time series are moving with a common
pattern due to a connection between the two time series
Combination Ans✓✓✓ The number of different unordered possibilities for a
certain situation.
Complement Ans✓✓✓ The occurrence of an event not happening, the opposite
conditional probability Ans✓✓✓ the probability of an event occurring given that
another event has occurred
Confidence interval Ans✓✓✓ An interval estimate used to indicate reliability
