The Following Data Was Collected from a Simple Random Sample

question 90

Multiple Choice

The following data was collected from a simple random sample of a population of college freshmen. It represents their ages on the first day of the fall semester. 17 21 19 18 18 19
The point estimates of the population mean and standard deviation are:

• A) 18 and 1.75.
• B) 19 and 1.78.
• C) 17.67 and 1.63.
• D) 18.67 and 1.36.

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Definitions:

High School

An educational institution that offers secondary education, typically for students aged around 14 to 18, in preparation for college or vocational training.

Content Validity

Refers to the extent to which a test or measurement tool assesses all the relevant or necessary aspects of the concept it intends to measure.

Expert Judgment

The insight or decision made by someone who is highly knowledgeable and experienced in a particular field.

Random Errors

Errors in measurement caused by unpredictable fluctuations and which affect the precision of experimental data.