WGU C207 Data-Driven Decision-Making Exam (NEW 2023/ 2024 Update) Questions and Verified Answers- 100% Correct| A Grade
WGU C207 Data-Driven Decision-Making
Exam (NEW 2023/ 2024 Update) Questions
and Verified Answers- 100% Correct| A
Grade
QUESTION
Represents the probability that a variable falls with a certain range
Answer:
Cumulative distribution
QUESTION
A list of all the different probabilities of each outcome that can occur
Answer:
Probability Distribution
QUESTION
Z-score for 99% level of confidence
Answer:
2.576
QUESTION
Z-score for 95% level of confidence
Answer:
1.960
QUESTION
Measures of central tendency are approximately equal (Mean and Median)
Answer:
Normal Distribution
QUESTION
Used to compare the mean of three or more groups
Answer:
ANOVA
QUESTION
ANOVA uses this test statistics
Answer:
F-value
(must be higher than critical value to reject the null)
QUESTION
T-test uses this test statistic
Answer:
T-value
(must be higher than critical value to reject the null)
QUESTION
A correlation is weak if the coefficient is close to __
Answer:
Zero
QUESTION
A correlation is strong if the coefficient is close to __
Answer:
1 or -1
QUESTION
Illustrates performance measurements over a period of time
Answer:
Run Chart
QUESTION
Illustrates limits or constraints a process should not exceed
Answer:
Control Chart
QUESTION
Visual tool to understand a process
Answer:
Flowchart
QUESTION
Easy tool to collect data to create other charts
Answer:
Check Sheet
QUESTION
Assists in brainstorming issues that are causing a problem
Answer:
Cause and Effect Diagram
Not measurements!
QUESTION
Graphical display of a data set with one bar for each category
Answer:
Histogram and Pareto
QUESTION
Graphical display of data set centered
Answer:
Histogram
QUESTION
Graphical display of data set in highest to lowest order
Answer:
Pareto
QUESTION
Used for potential relationships and correlation between variables
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