Nowadays, gas shielded metal arc welding (GSMAW) is widely used in various constructions. such as steel structures, bridges, autos, motorcycles, construction machinery, ships, offshore. structures, pressure vessels, and pipelines due to high welding efficiency.
A confidence interval is a range around a measurement that conveys how precise the measurement is. For most chronic disease and injury programs, the measurement in question is a proportion or a rate (the percent of New Yorkers who exercise regularly or the lung cancer incidence rate).
Confidence Limits. (Same as confidence interval, but is terminology used by Lauer and Asher.) The range of scores or percentages within which a population percentage is likely to be found on variables that describe that population (Lauer and Asher, 58).