Analyze Overview
The A in DMAIC
What is Analyze?
This term represents the null hypothesis (nothing is going on)
What is Null hypothesis?
The symptom of the problem is the ______ above the surface.
What is the weed?
Term used to describe unnatural variability
What is special cause?
Defines the degree to which 2 variables are related
What is Correlation?
Goal of Analyze Phase
What is determine the root cause of the problem?
This is the risk of not rejecting the null hypothesis when you should
What is Type 2 (beta) error?
Incoming arrows in this tool show the final effect
What is the Interrelation Digraph?
Chart used to continuous data with subgroup size >10
What is x-s chart?
This analysis gives the mathematical relationship or the prediction model.
What is regression?
Bobby Green Belt will be successful with Kaizen #1 if he is able to complete this step
What is have a list of prioritized root causes?
This is used for normal, continuous data to determine statistical significant difference of a paired comparison
What is 1-sample t-test?
Number of times to repeatedly ask a question to peel away the layers of symptoms which can lead to the root cause of the problem.
What is 5?
This Control chart is typically used for inventory turns and destructive testing
What is I-MR chart?
r2 =0.49, the Pearson's coefficient =
What is 0.7?
This person is the facilitator not the dictator of Kaizen #1
Who is the Green Belt?
P-value when there isn’t sufficient evidence at the α level of significance to show that the alternative hypothesis is true
What is p>0.05?
Part of the Ishikawa diagram that lists the causes of the problem
What is the body (bones) ?
Number of data points in a row all greater than one standard deviation of either side of the center line that show that process is not in control
What is 8?
Model used to determine predictors that impact LOS (e.g., placement, family support, discharge orders)
What is multiple regression?
This step is performed after prioritizing root causes
What is validation of root causes?
Value of the F ratio when the null hypothesis cannot be rejected
What is close to 1?
Category used in the Ishikawa Diagram when standard work is not clear or documented
What is Method (Process)?
LCLR for Xbar-R Control Chart
mean = 10; mean of mean (x double bar) = 8
range = 20; mean of range (R bar) = 10
A2 = 0.577, D3 = 0, D4 = 2.114
subgroup size = 5
What is 0?
Type of correlation when r = 0.85 and p=0.01
What is a statistically significant different strong positive correlation?