For a 99% Confidence Interval of the Population Mean Based

question 131

Multiple Choice

For a 99% confidence interval of the population mean based on a sample of n = 25 with s = 0.05,the critical value of t is:

• A)2.7969
• B)2.7874
• C)2.4922
• D)2.4851

---

Definitions:

Roentgen

A unit of measurement for exposure to ionizing radiation, reflecting the amount of radiation required to create one electrostatic unit of charge in one cubic centimeter of dry air.

Contrast Medium

A substance used in medical imaging to enhance the visibility of internal structures in radiographic studies.

Images

Visual representations produced by techniques such as photography or illustration, used in various fields including medicine, science, and art.

Cassette

A cassette is a small, flat, rectangular plastic enclosure containing magnetic tape for playing or recording sound or data.