When Testing for Differences Between Two Groups, If the Computed

question 79

Multiple Choice

When testing for differences between two groups, if the computed z value at 99% confidence is 1.98 we can conclude that:

• A) we can reject the null hypothesis that there is no difference between the groups.
• B) we can accept the null hypothesis that there is no difference between the groups.
• C) there is a statistically significant difference between the two groups.
• D) that there is a difference, but not a statistically significant one, between the two groups.
• E) we need to run more tests because 1.98 is too close to the 1.96 z-value for 99% level of confidence.

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Definitions:

Memory Process

The series of processes involved in the encoding, storing, and retrieving of memories.

Retrieval

Retrieval is the process of accessing and bringing into consciousness information stored in memory. It is a critical aspect of the memory process.

Sensory Store

A very brief type of memory that holds incoming information from the senses for a very short duration, nearly half a second for visual information and a few seconds for auditory information.

Rehearsal

A cognitive process involving the repeated practice of material to be remembered, aiming to enhance memory retention.