A Variable X Has a Mean, µ, of 19

question 149

Multiple Choice

A variable x has a mean, µ, of 19.5 and a standard deviation, Ϭ, of 5.9. Determine the z-score corresponding to an observed value for x of 29.9. Round your final answer to two decimal places.

• A)1.23
• B)-1.76
• C)1.76
• D)8.37

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Definitions:

Copper

A chemical element with the symbol Cu and atomic number 29, known for its high electrical and thermal conductivity, and widely used in electrical wiring and coinage.

Political System

The structure of government and its institutions, which defines how power is obtained, distributed, and exercised within a society.

Ceremonial Objects

Items used in rituals or ceremonies that hold symbolic meaning or significance, often specific to particular cultures or religions.

Lapis Lazuli

A deep-blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color.