Given: Null Hypothesis Is That the Population Mean Is 16

question 6

Multiple Choice

Given: null hypothesis is that the population mean is 16.9 against the alternative hypothesis that the population mean is not equal to 16.9. A random sample of 25 items results in a sample mean of 17.1 and the sample standard deviation is 2.4. It can be assumed that the population is normally distributed. Determine the observed "t" value.

• A) t = 0.83
• B) t = 1.83
• C) t = 1.75
• D) t = 0.42

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Definitions:

Ciliary Body

A part of the eye that includes the ciliary muscle, which controls the shape of the lens for focusing, and the ciliary epithelium, which produces the aqueous humor.

Optic Nerve

The nerve that transmits visual information from the retina to the brain.

Retina

The light-sensitive layer of tissue at the back of the inner eye that converts light images into nerve signals sent to the brain.

Conjunctiva

The thin, transparent membrane that covers the white part of the eyeball and the inner surfaces of the eyelids.