An industrial engineer has conducted a two-factor factorial experiment as part of the research to develop a new product. A portion of the output is shown below: SS 874 776 6 ? ? 1194 DF MS 5 ? 1 2 ? 11 F Model A B AB ERROR Total What is the estimate of error variance?
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
An industrial engineer has conducted a two-factor factorial experiment as part of the research to develop a new product. A portion of the output is shown below:
SS
874
776
6
?
?
1194
DF MS
5
?
1
2
?
11
F
Model
A
B
AB
ERROR
Total
What is the estimate of error variance?
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