Syntax + notes Reviewer Flashcards
Which data collection method studies the relationship between variables where the data collected is in response to process input changes?
Designed Experiment
A design that uses every possible combination of factor levels to form a basic experiment with “k” different settings for the process
Factorial experiment
Where data is presently collected by a passive observer
Observational study
Consists of historical data, like board exam performances in the past year
Retrospective study
1-sample hypothesis test
A type of hypothesis test where the researcher compares 1 sample to a set/established criteria/data
2-sample hypothesis test
Where a researcher compares 2 samples simultaneously as they are both observed
the result of factors we can’t control in an experiment
Variability
What is a control chart?
A chart used to control quality by setting upper and lower control limits on a variable (plotted along y-axis) and keeping the points of that graph within those bounds
Mechanistic models are…?
… based on physical principles & theories and built from our underlying knowledge. Example: Ohm’s Law.
Empirical models are…?
… derived from empirical data, not theory, and rely much on observation and experimentation.
A mathematical representation of a random phenomenon.
Probability Model
Random Experiment (define)
Experiment where you have no control over the outcome. A dice roll is a good example, a coin flip is not (why tho).
What is a sample space?
It’s a set of all possible outcomes in an experiment.
What is an event?
A subset of a sample space.
The highest value of probability is?
1, which indicates certainty.
The lowest possible value of probability is…?
0, which indicates impossibility.
When and how do you apply the Multiplication Rule (counting techniques)?
When you want to find the total number of possible combinations; by multiplying every ‘set’ of events.
When and how would you use the Permutation Rule?
When the problem asks for combination where order matters. It’s like a more advanced version of Multi-Rule. We use factorials for this one.
When and how would you use the Combination Rule?
We use this to find the number of possible values and we don’t care about order.
Equation of Permutation Rule
n!/(n-k)!
Equation of Combination Rule
n!/[(n-k)!k!]
