Hypothesis Test
Root Cause Analysis/Terms
Control Charts
Process Capability
Correlation and Regression
100
This type of hypothesis, denoted H1 or Ha, is the opposite (something IS going on)
What is the alternate hypothesis
100
This RCA tool askes the question “why” multiple times so that you can peel away the layers of symptoms
What is 5 whys
100
These two types of limits describe the process variability and are unrelated to customer specifications
What are the ULC LCL- Control Limits
100
This term is used to describe how a process is executing against some established goal or statistical measure. Ex of this is DPMO
What is process performance
100
This variable(s) is also called the predictor variable or Independent variables
What is Input Variable (X’s)
200
This error is defined as the Beta or “consumer risk” of not rejecting the null hypothesis when you should. Also know as a False Negative
What is Type 2 Error
200
This type of RCA tool starts with a single problem-EFFECT and lists all the possible reasons for the problem- CAUSE
What is Fishbone Diagram
200
This type of variation is caused by unnatural variability – ex. Hurricane
What is special cause variation
200
This type of measure is calculated by dividing the number of defects by the total number of units
Defects per Unit (PDU)
200
This term indicates the strength of the correlation between two factors
What is Correlation Coefficient
300
This type of Hypothesis test is used to determine whether a statistical parameter is different from a value of interest. (Normal Continuous Data with One Sample)
What is 1 sample t-test
300
This term describes a visual management tool used to monitor and improve variation in a process
What is statistical Process Control
300
This type of control chart is used to track the process level and to detect the presence of special causes when the sample size is 1
What is Individual and moving range (I-MR) Chart
300
This traditional quality metric for yield is calculated by looking at = (Total units passed/Total units tested)
What is FTY- First Time Yield
300
This graph shows what type of correlation
What is a strong negative correlation
400
This type of Hypothesis test is used to compare 3 or more samples to determine if the means are statistically different
What is ANOVA
400
This special cause test is the MOST test use in SPC charts
What is 1 point > 3 standard deviations from center line
400
These types of control charts are used to track defects
What are C and U charts
400
These types of studies are intended to be regular, periodic, estimations of a process’s ability to meet its customer requirements/goals
What are process capability studies
400
This type of analysis can mathematically predict Y for any given X
What is Regression Analysis
500
For the ANOVA analysis this decision is made when the F ratio is sufficiently large, and indicates that the value of the numerator is substantially different than the denominator
What is reject the null hypothesis
500
This term is the Japanese term for Fishbone Diagram
What is Ishikawa Diagram
500
This type of control chart is used to track defectives
What is P Chart
500
This sigma level has a defect rate of 6,210 dpmo
What is 4 Sigma
500
This type of analysis is used when investigating several factors that could influence one outcome measure (two or more X’s, One Y)
What is Multiple Regression Analysis