The Mean Gross Annual Incomes of Certified Tack Welders Are

question 15

Multiple Choice

The mean gross annual incomes of certified tack welders are normally distributed with the mean of
$50,000 and a standard deviation of $4,000. The ship building association wishes to find out
Whether their tack welders earn more or less than $50,000 annually. The alternate hypothesis is
That the mean is not $50,000. When tested at the 99% level, these are the results found with
Megastat:

• A) Since the p-value is 0.43 at this level of testing, there is insufficient evidence to say that the welders earn an income different from $50,000.
• B) Since the p-value is 0.43 at this level of testing, there is sufficient evidence to say that the welders earn more than $50,000.
• C) The p-value of 0.043 indicates that there is sufficient evidence to say that the welders earn more than $50,000.

---

Definitions:

Continuous Reinforcement

A learning schedule in which a reward is given after every correct response, rapidly establishing a behavior but also leading to quick extinction if rewards stop.

Target Response

A desired behavior or outcome that is identified for reinforcement in order to increase its occurrence, often used in behavior modification techniques.

Reinforcement

Reinforcement is a principle in behavioral psychology where the likelihood of a behavior is increased by following it with a positive stimulus or removing a negative one.

Stimulus Generalization

The tendency for the conditioned response to be evoked not only by the conditioned stimulus but also by stimuli similar to the conditioned stimulus.