Apply the Pooled T-Test

question 8

Multiple Choice

Apply the pooled t-test.
-Data were collected on annual personal time (in hours) taken by a random sample of 16
Women and 20 men employed by a medium-sized company. The women took an average
Of 24.75 hours of personal time per year with a standard deviation of 2.84 hours. The men
Took an average of 20.5 hours of personal time per year with a standard deviation of 2.75
Hours. If we use the pooled t-test to see if there is a difference between the two groups, the
Degrees of freedom for the appropriate t-statistic is

• A) 36
• B) 34
• C) 20
• D) 16
• E) None of the above.

---

Definitions:

Excitatory Signals

Neural impulses that increase the likelihood of a neuron firing, leading to an action.

Action Potential

A short-lasting event in which the electrical membrane potential of a cell rapidly rises and falls, allowing neurons to transmit signals over distances.

Minimum Intensity

The lowest level of stimulus intensity required to produce a detectable response or result.

Neurotransmitters

Chemicals that transmit signals across a synapse from one neuron to another in the nervous system.