In Developing an Interval Estimate for a Population Mean,a Sample

question 53

Multiple Choice

In developing an interval estimate for a population mean,a sample of 40 observations was used.The interval estimate was 28.76 ± 1.48.Had the sample size been 160 instead of 40,the interval estimate would have been:

• A)28.76 ± 0.37
• B)28.76 ± 0.74
• C)28.76 ± 1.48
• D)28.76 ± 2.96

---

Definitions:

Technically Feasible

Refers to a project or proposal that is possible to implement or achieve with the existing technological resources and knowledge.

Economically

Pertaining to the efficient and prudent management or use of resources, often with the objective of saving or minimizing costs.

Failure Causes

The reasons or factors that lead to the unsuccessful outcome of a process, project, or operation.

Accident Report

A document detailing the occurrences and facts surrounding an unintended or unforeseen event, often leading to injury or damage.