THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 251

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Consider the following scores on a 20 point aptitude test for two samples of eight students each:
Sample 1: 18,19,17,15,14,20,14,and 16
Sample 2: 14,15,13,11,10,16,10,and 12
-Calculate the variance for the scores in sample 1.

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Definitions:

Hypothesis

A proposed explanation for a phenomenon, made as a starting point for further investigation, which can be tested through research and experimentation.

Theory

A coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation.

Operational Definition

A definition that provides an objective description of how a variable is going to be measured and observed in a particular study.

Helpful

Providing assistance or benefit to others; capable of improving a situation or condition.