A Simple Regression Analysis Linking Dependent Variable Y to Independent

question 6

Multiple Choice

A simple regression analysis linking dependent variable y to independent variable x is conducted with 20 observations.The F ratio used to test the  = 0 null hypothesis indicates that the slope coefficient is statistically significant at the 5% significance level.The value of t_stat for the x coefficient will also show that the slope coefficient is

• A)statistically significant at the 2.5% significance level.
• B)greater than F
• C)statistically significant at the 5% significance level.
• D)statistically significant at the 1% significance level.
• E)none of the above

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Definitions:

Neuromodulator

A substance released by neurons that adjusts the activity of other neurons or synapses, modulating the overall behavior of the brain and body.

Neurotransmitters

Chemical substances produced by neurons that transmit signals across a chemical synapse from one neuron to another target neuron, muscle cell, or gland cell.

Presynaptic Facilitation

An increase in the neurotransmitter release from a presynaptic neuron, enhancing the response of the postsynaptic neuron.

Myelinated Fiber

A nerve fiber with a myelin sheath, which increases the speed at which electrical impulses propagate along the nerve fiber.