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Michael Sokolski (September 25, 1926 – June 13, 2012) was a Polish-born American design engineer. Sokolski was the inventor [1] of the Scantron OMR scanner, used to scan and grade forms on which students mark answers to academic multiple choice test questions. [2] [3] [4] Sokolski was born near Rovno, Poland (now Rivne, Ukraine) on September ...
Design–Expert offers test matrices for screening up to 50 factors. A power calculator helps establish the number of test runs needed. ANOVA is provided to establish statistical significance. Based on the validated predictive models, a numerical optimizer helps the user determine the ideal values for each of the factors in the experiment. [7]
Stat-Ease, Inc. is a privately held company producing statistical software in Minneapolis, Minnesota, USA, founded by Patrick Whitcomb in 1982.The company has 11 employees and provides software packages for engineers and scientists using design of experiments (DOE) methods for optimizing development of products and processes.
As a result, many people came to think of all mark-sense forms (whether optically sensed or not) as scantron forms. In 1983, Westinghouse Learning Corporation was acquired by National Computer Systems (NCS). In 2000, NCS was acquired by Pearson Education, where the OMR technology formed the core of Pearson's Data Management group. In February ...
Scantron Corporation is an American company based in Eagan, Minnesota. Scantron provides assessment solutions and technology services for business, education, certification, and government clients. Scantron provides assessment solutions and technology services for business, education, certification, and government clients.
Factorial experimental design software drastically simplifies previously laborious hand calculations needed before the use of computers. During World War II, a more sophisticated form of DOE, called factorial design, became a big weapon for speeding up industrial development for the Allied forces. These designs can be quite compact, involving a
Michael Sokolski, 85, Polish-born American design engineer, founder of Scantron, heart failure. [ 211 ] Gladys Widdiss , 97, American tribal historian and potter, President of the Aquinnah Wampanoag of Gay Head (1978–1987).
The design should be sufficient to fit a quadratic model, that is, one containing squared terms, products of two factors, linear terms and an intercept. The ratio of the number of experimental points to the number of coefficients in the quadratic model should be reasonable (in fact, their designs kept in the range of 1.5 to 2.6).