WALDCC: WALDCC: Wald Method with Continuity Correction for Simultaneous Confidence Intervals
Description
Computes Wald-type simultaneous confidence intervals for multinomial
proportions, incorporating a continuity correction. These intervals are
symmetric about the sample proportions and apply a small correction to
improve coverage accuracy, particularly for small samples.
Usage
WALDCC(inpmat, alpha)
Value
Prints the original and adjusted confidence intervals for each category,
along with the volume (product of interval widths).
Arguments
inpmat
Integer vector of observed cell counts corresponding to a
categorical dataset. All values must be non-negative.
alpha
Desired statistical significance level
Author
Dr. M. Subbiah
Details
The correction term 1/2n ensures more accurate interval bounds,
especially when the proportions are near 0 or 1.
References
Wald, A. (1943).
*Tests of Statistical Hypotheses Concerning Several Parameters When the Number of Observations is Large.*
Transactions of the American Mathematical Society, **54**, 426–482.