Food and Fluid Should Be Withheld for How Many Hours

question 96

Multiple Choice

Food and fluid should be withheld for how many hours before a stomach examination?

• A) 2
• B) 4
• C) 8
• D) 12

---

Definitions:

T-Test

A statistical test used to compare the mean values of two groups, which might come from independent samples or from matched pairs of samples.

Degrees Of Freedom

The number of independent values within a statistical calculation that are free to vary without violating any constraints.

T-Test

A T-test is a statistical test used to compare the means of two groups to see if they are significantly different from each other, commonly used when data follows a normal distribution.

Matched Pairs Experiment

An experimental design in which the participants are paired up according to a specific criterion, ensuring that each pair is as similar as possible, and then different treatments are applied to the members of each pair.