A Population Has a Mean of 98

question 29

Short Answer

A population has a mean of 98.2 and a standard deviation of 25.2.Assuming ,the probability,rounded to four decimal places,that the sample mean of a sample of size 89 elements selected from this population will be between 91 and 97 is:

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Definitions:

Observations

The act of noticing and recording something, often used as a method in scientific research to gather data.

Theory

A system of ideas intended to explain something, based on general principles independent of the thing to be explained.

Operational Definition

A statement of the procedures or ways in which a research concept, variable, or phenomenon is measured or experienced.

Theoretical Definition

A statement that gives the meaning of a term in the context of a theory or framework, specifying the underlying concepts.