A Random Sample of 25 Rats Was Fed a Diet

question 68

Multiple Choice

A random sample of 25 rats was fed a diet for a period of 4 weeks. The weight gain (in grams) was recorded for each rat. It is known that the population variance is 4. The average weight gain was 16.1.
The P-value for testing the claim that this diet would increase weight by at least 15 grams would be

• A) 0.005
• B) 0.003
• C) 0.014
• D) 0.135

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Definitions:

Working Memory

A cognitive system responsible for temporarily holding information available for processing and decision making.

Short-Term Storage

A memory storage system that briefly holds a limited amount of information in awareness.

Recency Effects

A cognitive phenomenon wherein the most recently presented items or experiences are more likely to be remembered than those presented earlier.

Primacy

The state of being first or foremost in importance or order, often affecting memory and perception.