Hay Press.

Patent for an improved, inexpensive, and simple hay press that "alternately feed[s] the hay into the chamber, and press the same, the two mechanisms being operated from the same source; to provide for increase of power, and for regulating the tension or mouth of the press at the point of exit of the completed bale" (lines 12-18)

Experimental Design: Unified Concepts, Practical Applications, and Computer Implementation

This book is a concise and innovative book that gives a complete presentation of the design and analysis of experiments in approximately one half the space of competing books. With only the modest prerequisite of a basic (non-calculus) statistics course, this text is appropriate for the widest possible audience. Two procedures are generally used to analyze experimental design data—analysis of variance (ANOVA) and regression analysis. Because ANOVA is more intuitive, this book devotes most of its first three chapters to showing how to use ANOVA to analyze balanced (equal sample size) experimental design data. The text first discusses regression analysis at the end of Chapter 2, where regression is used to analyze data that cannot be analyzed by ANOVA: unbalanced (unequal sample size) data from two-way factorials and data from incomplete block designs. Regression is then used again in Chapter 4 to analyze data resulting from two-level fractional factorial and block confounding experiments

Essentials business of statistics

xxii, 668 p.; 29 cm

Essentials of business statistics

xxii, 665 hlm. : ilus.; tab. ; 27,5 cm

Essentials of business statistics

xxii, 665 p. : ill. ; 29 c