In a Left-Tailed Test Comparing Two Means with Unknown Variances

question 70

Multiple Choice

In a left-tailed test comparing two means with unknown variances assumed to be equal, the test statistic was t = -1.81 with sample sizes of n₁ = 8 and n₂ = 12. The p-value would be:

• A)between .025 and .05.
• B)between .01 and .025.
• C)between .05 and .10.
• D)Must know α to answer.

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Definitions:

Paget's Disease

A chronic disorder that can result in enlarged and misshapen bones due to abnormal bone destruction and regrowth.

Kyphosis

A spinal disorder causing an excessive outward curve of the spine, leading to a hunchback or slouching posture.

Scoliosis

A medical condition characterized by an abnormal lateral curvature of the spine, which can vary in severity.

Foramen Magnum

The large hole in the occipital bone that allows the brain to connect to the spinal cord.