I Nonparametric Tests of Hypotheses, Which Are Also Called Distribution

question 103

Multiple Choice

i. Nonparametric tests of hypotheses, which are also called distribution free tests, require the population to be normally distributed.
Ii) The computed value of chi-square is always positive because the difference between the observed frequencies and the expected frequencies are squared.
Iii) The shape of the chi-square distribution changes for each number of degrees of freedom.

• A) (i), (ii) and (iii) are all correct statements
• B) (i) and (ii) are correct statements, but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) All statements are false

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Definitions:

Interneurons

Neurons located between sensory and motor pathways in the nervous system, involved in the processing and relay of information.

Spinal Cord

A long, thin, tubular bundle of nervous tissue and support cells that extends from the brain, enabling motor and sensory communication between the body and brain.

Spatial Summation

Summation of the local potentials in which two or more action potentials arrive simultaneously at two or more presynaptic terminals that synapse with a single neuron.

Action Potentials

Electrical impulses that travel along the membrane of nerve cells, allowing them to communicate with other cells.