A Researcher Selects a Sample of 36 Students from a School

question 51

Multiple Choice

A researcher selects a sample of 36 students from a school population with a mean IQ of 100 and standard deviation of 12.She determines that the mean IQ in this sample is 104.Assuming she computes a one-sample z test at a .05 level of significance,what is the decision for a two-tailed test?

• A)Retain the null hypothesis;IQ scores in this sample are the same as those in the population.
• B)Reject the null hypothesis;IQ scores in this sample are significantly higher than those in the population.
• C)There is not enough information to make a decision.

---

Definitions:

Memorability

The quality of being easy to remember due to being notable or remarkable.

Context-Dependent Learning

Context-dependent learning is the phenomenon where the context in which information is learned affects the ability to recall that information.

Mood-Congruent Memory

The tendency to recall information or events that are consistent with one's current mood, influencing and reinforcing emotional states.

Serial Position Effect

A memory phenomenon where items at the beginning and end of a list are more likely to be recalled than those in the middle.