Suppose a Random Sample Of $n = 64$ Measurements Is Selected from a Population with Mean

question 15

Short Answer

Suppose a random sample of $n = 64$ measurements is selected from a population with mean $\mu = 65$ and standard deviation $\sigma = 12$ . Find the $z$ -score corresponding to a value of $\bar { x }$ $= 68$ .

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Definitions:

Middle Ear

The portion of the ear internal to the eardrum and external to the inner ear, containing three small bones that transmit sound vibrations to the inner ear.

Hammer

A tool typically used for pounding nails into, or extracting nails from, some other object. Generally features a handle and a heavy head.

Anvil

A heavy iron block typically used in metalworking upon which metal can be hammered and shaped.

Stirrup

A small U-shaped bone in the middle ear that transmits sound vibrations from the anvil to the cochlea. Alternatively, it refers to a device attached to the saddle in horse riding, supporting the rider's foot.