Calculate sample size of number of cases to be found to assess coverage

Usage

get_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

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_n(N = 600, dLower = 0.7, dUpper = 0.9)
#> $n
#> [1] 1
#> 
#> $d
#> [1] 2
#> 
#> $alpha
#> [1] 0.003333333
#> 
#> $beta
#> [1] 0.9966667
#>