A Simple Random Sample of 144 Items Resulted in a Sample

question 74

Short Answer

A simple random sample of 144 items resulted in a sample mean of 1080. The population standard deviation is known to be 240. Develop a 95% confidence interval for the population mean.

---

Definitions:

Making Measurable

The process of defining or setting metrics to quantify progress, performance, or outcomes.

Scientific Investigator

An individual who conducts rigorous inquiries and experiments to explore scientific questions and hypotheses.

Forming a Hypothesis

The process of developing a testable statement or prediction based on observations and existing knowledge.