The Track ABC in the Figure Is a Reproduction of the Path

question 19

Multiple Choice

The track ABC in the figure is a reproduction of the path of a charged particle in a cloud chamber. If the magnetic field is perpendicular to this sheet of paper and directed into the paper, the particle

• A) has a positive charge and has moved from C to A.
• B) has a negative charge and has moved from C to A.
• C) has a positive charge and has moved from A to C.
• D) has a negative charge and has moved from A to C.
• E) is an alpha particle.

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Definitions:

Critical Value

A point on the scale of a statistical distribution that is used to determine the boundary for rejecting the null hypothesis in hypothesis testing.

One-sample T-test

A statistical test used to compare the mean of a single sample to a known average or standard value.

Parametric Counterpart

Refers to statistical tests or models that assume a certain distribution shape for the underlying data, as opposed to non-parametric methods which do not.

Kruskal-Wallis Test

A nonparametric test used to determine if there are statistically significant differences between two or more groups of an independent variable on a continuous or ordinal dependent variable.