day26 - Analysis of Variance Example Chemitech developed a...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Analysis of Variance Example : Chemitech developed a new filtration system for municipal water supplies. The industrial engineering groups must determine the best assembly method for the new filtration system. There are three alternatives: method A, method B, and method C. 15 workers were randomly selected, and then each of the three methods was randomly assigned to five workers. The number of units assembled during one week is recorded for each worker. Method A Method B Method C 58 58 48 64 69 57 55 71 59 66 64 47 67 68 49 Sample Mean 62 66 52 Sample Std. Dev. 5.244 5.148 5.568 This is an example of a completely randomized design . What is the factor? What are the treatments? What is the response variable? How many replications are there? 1 Goal : To test for the equality of k population means for a completely ran- domized design. The hypotheses: H : μ 1 = μ 2 = ··· = μ k H a : Not all population means are equal where μ j is the mean of the jth population....
View Full Document

{[ snackBarMessage ]}

Page1 / 7

day26 - Analysis of Variance Example Chemitech developed a...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online