import { AfterContentInit, QueryList } from '@angular/core';
import { ControlValueAccessor, NgControl } from '@angular/forms';
import * as i0 from "@angular/core";
export declare class SampleSizeCalculator implements ControlValueAccessor, AfterContentInit {
    controlsArray: QueryList<NgControl>;
    onChange: any;
    onTouched: any;
    ngAfterContentInit(): void;
    /**
     * Retrieves the control names needed for extraction based on available fields.
     *
     * @param {Array} fields - The array of field objects.
     * @returns {Array} - An array of unique control names from the fields.
     */
    getRequiredControlNames(fields: any): unknown[];
    /**
   * Extracts the values of the specified controls from the fields array.
   *
   * @param {Array} fields - The array of field objects.
   * @param {Array} controlNames - The list of control names to extract values for.
   * @returns {Object} - An object containing the extracted control values.
   */
    extractControlValues(fields: any, controlNames: any): any;
    /**
   * This function calculates the sample size required for an experiment. It uses the formula:
   * n = (Z^2 * p * (1 - p)) / E^2
   * where:
   * - n is the sample size
   * - Z is the z-score for the desired confidence interval
   * - p is the proportion of the population that has the attribute being measured
   * - E is the desired margin of error
   * If the population size is known and less than 1,000,000, the formula is adjusted to:
   * n = (Z^2 * p * (1 - p)) / (E^2 / (N / (N - 1) + 1))
   * where N is the population size
   *
   * @param {*} params
   * @returns {number} sampleSize
   * @description Calculate the sample size required for an experiment
   * @example calculateSampleSize({ confidenceLevel: 0.95, populationSize: 1000, resultMaxValue: 0.6, resultMinValue: 0.4, targetMarginOfError: 0.05 }); // 384
   */
    calculateSampleSize(params: any): number;
    /**
   * This function determines the proportion to use for the sample size calculation. It chooses the value that is further from 0.5
   * @param {*} minValue The minimum value of the proportion range (0-1)
   * @param {*} maxValue The maximum value of the proportion range (0-1)
   * @returns The proportion to use for the sample size calculation
   */
    determineProportionForCalculation(minValue?: number, maxValue?: number): number;
    writeValue(value: any): void;
    registerOnChange(fn: any): void;
    registerOnTouched(fn: any): void;
    setDisabledState?(isDisabled: boolean): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<SampleSizeCalculator, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<SampleSizeCalculator, "shorterloop-sample-size-calculator", never, {}, {}, ["controlsArray"], ["*"], true, never>;
}