â¢ The Chi-square test can be used to test for equality of. proportions between two or more groups. â The null hypothesis for this test is that the 2 proportions are equal. â The alternative hypothesis is that the proportions are not equal (test for a. difference in either direction) PubH 6414 Section 12 Part 2 3.
Definition of nosh. 1  intransitive verb. : 2  to eat a snack : munch noshing on pizza We noshed at the amusement park.
Etching is traditionally the process of using strong acid or mordant to cut into the unprotected parts of a metal surface to create a design in intaglio (relief) in the metal.In modern manufacturing, other chemicals may be used on other types of material.tching is traditionally the process of using strong acid or mordant to cut into the unprotected parts of a metal surface to create a design in intaglio (relief) in the metal.