Solve the Problem

question 150

Multiple Choice

Solve the problem. Round the point estimate to the nearest thousandth.
-445 randomly selected light bulbs were tested in a laboratory, 316 lasted more than 500 hours. Find a point estimate of the proportion of all light bulbs that last more than 500 hours.

• A) 0.415
• B) 0.708
• C) 0.710
• D) 0.290

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Definitions:

Excisional Biopsy

A surgical procedure where an entire lump or suspicious area is removed for diagnostic examination.

Sentinel Lymph Node

The first lymph node to which cancer cells are likely to spread from a primary tumor, often used in surgeries to assess cancer spread.

Needle Biopsy

A minimally invasive procedure where a small sample of tissue is collected for examination using a needle.