A Group of 49 Randomly Selected Students Has a Mean

question 35

Multiple Choice

A group of 49 randomly selected students has a mean age of 22.4 years. Assume the population standard deviation is 3.8. Construct a 98% confidence interval for the population mean.

• A)(21.1, 23.7)
• B)(20.3, 24.5)
• C)(19.8, 25.1)
• D)(18.8, 26.3)

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Definitions:

Functions

Mathematical concepts that describe the relationship between a set of inputs and a set of possible outputs, where each input is related to exactly one output.

Language

A system of communication that involves a set of arbitrary symbols.

Formal Ceremony

An official event conducted with established protocols and rituals, often marking significant occasions or achievements.

Manipulated

Altered or controlled in a skillful or sometimes deceitful manner.