Calculate sample size and decision rule for a specified LQAS sampling plan

Usage

get_sample_n(N, dLower, dUpper, alpha = 0.1, beta = 0.1)

get_sample_d(N, n, dLower, dUpper, alpha = 0.1, beta = 0.1)

Arguments

N: Total population size of cases in the specified survey area
dLower: Lower triage threshold. Values from 0 to 1.
dUpper: Upper triage threshold. Values from 0 to 1.
alpha: Maximum tolerable alpha error. Values from 0 to 1. Default is 0.1
beta: Maximum tolerable beta error. Values from 0 to 1. Default is 0.1
n: Sample size

Value

A list of values providing the LQAS sampling plan for the specified parameters. The list includes sample size, decision rule, alpha error and beta error for the specified classification scheme

Examples

get_sample_n(N = 600, dLower = 0.7, dUpper = 0.9)
#> $n
#> [1] 25
#> 
#> $d
#> [1] 20
#> 
#> $alpha
#> [1] 0.09357163
#> 
#> $beta
#> [1] 0.08585219
#> 
get_sample_d(N = 600, n = 40, dLower = 0.7, dUpper = 0.9)
#> $n
#> [1] 40
#> 
#> $d
#> [1] 32
#> 
#> $alpha
#> [1] 0.03637535
#> 
#> $beta
#> [1] 0.04944484
#>