Confidence Intervals for Common Coefficient of Variation of Several Birnbaum–Saunders Distributions

Confidence Intervals for the Normal Mean with Known Coefficient of Variation

In this paper we proposed two new confidence intervals for the normal population mean with known coefficient of variation. This situation occurs normally in environment and agriculture experiments where the scientist knows the coefficient of variation of their experiments. We propose two new confidence intervals for this problem based on the recent work of Searls [5] and the new method proposed...

Exact Confidence Intervals for a Common Location of Several Truncated Exponentials

In this paper we consider the problem of constructing exact conndence intervals for a common location of several truncated exponentials with unknown and unequal scale parameters. These intervals are based on combining suitable pivots as well as the so-called P-values.

On Simple Confidence Intervals for the Normal Mean with Known Coefficient of Variation

In this paper we proposed the new confidence interval for the normal population mean with a known coefficient of variation. In practice, this situation occurs normally in environment and agriculture sciences where we know the standard deviation is proportional to the mean. As a result, the coefficient of variation of is known. We propose the new confidence interval based on the best unbiased es...

Confidence Intervals for Mean and Difference of Means of Normal Distributions with Unknown Coefficients of Variation

This paper proposes confidence intervals for a single mean and difference of two means of normal distributions with unknown coefficients of variation (CVs). The generalized confidence interval (GCI) approach and large sample (LS) approach were proposed to construct confidence intervals for the single normal mean with unknown CV. These confidence intervals were compared with existing confidence ...

Performance Evaluation of Confidence Intervals for Ordinal Coefficient Alpha