A Sample of N = 25 Pairs of Scores (X

question 58

Essay

A sample of n = 25 pairs of scores (X and Y values)produces a correlation of r = -0.40.Are these sample data sufficient to conclude that there is a significant non-zero correlation between X and Y in the population? Use a two-tailed test at the .05 level of significance.

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Definitions:

Suspension

Liquid through which a solid is dispersed and from which the solid separates unless the liquid is kept in motion.

Equilibrium

A state of balance between opposing forces or actions.

Steady State

A condition where all aspects of a system are in balance and unchanging over time, often used in physics, chemistry, and physiology.

Activation

The process of making something active or operative, such as initiating a chemical reaction or stimulating a cell to perform a function.