Kalkulator Ukuran Sampel
Nggunakaké ukuran sampel survey kanggo margin kesalahan target.
Hasil dioptimalake nalika sampeyan ngetik.
Ngendi kalkulator iki
the sample size calculator, you can calculate the sample size for a given population size. The sample size calculator uses the standard formula n = z²·p(1 − p) / e², where z is the critical value for the confidence level, p the expected proportion and e the target margin of error as a decimal. The sample size calculator uses the standard formula n = z²·p(1 − p) / e², where z is the critical value for the confidence level, p the expected proportion and e the target margin of error as a decimal. The sample size calculator uses the standard formula n = z²·p(1 − p) / e², where z is the critical value for the confidence level, p the expected proportion and e the target margin of error as a decimal. The sample size calculator uses the standard formula n = z²·p(1 − p) / e².Worked example: n = 1.96² × 0.5 × 0.5 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷ 0.0025 ÷
Takon kang asring diajukake
Kepiye ukuran sampel dikalkulasi?
Formula basis punika n = z²·p(1 − p) / e², ing ngendi z inggih punika nilai kritis kawicaksanaan, p inggih punika proporsi ingkang dipunharapi lan e inggih punika margin kesalahan minangka angka desimal. Hasilipun dipunpundhut awit sampeyan boten saged ngukur pecahan saking tiyang.
Apa sing diarani revolusi sosial?
Nalika populasi sampeyan cilik, sampeyan butuh luwih akèh jawaban tinimbang formula basis sing dianjurake. Korreksi n = n₀ / (1 + (n₀ − 1)/ N) ngurangi sampel menyang ukuran populasi N. Iki paling penting nalika sampel iku pecahan gedhe saka total.
Apa ana wong kang kudu kanggo tingkat kepercayaan 95%?
Ing 95% confidence karo margin 5% lan ora ana estimasi sadurunge sampeyan butuh kira-kira 385 responden; margin 3% butuh kira-kira 1,068 lan margin 1% kira-kira 9,604.
Mengapa ukuran sampel dibulat-bulat?
Sampeyan ora bisa nyelehake bagean saka wong, mula asil pecahan bakal dipundhut nganti angka bunder sabanjuré. Pundhut nganti dhuwur tinimbang mudhun bakal njamin margin kesalahan ora luwih gedhé tinimbang target sampeyan.
Apa kula kedah ninggalaken ukuran populasi kosong?
Tindakaké ing nol (utawa kosong) nalika populasi banget gedhé utawa ora dingerteni, kang bakal menehi ukuran sampel standar "populasi tanpa wates". Ngetik populasi nyata mung nalika cukup cilik supaya panyetel bisa nyuda sampel.
Kepiye aku bisa nyuda ukuran sampel sing dibutuhake?
Ngraos margin kesalahan ingkang langkung ageng, gunakaké tingkat kawicaksanaan ingkang langkung endhek, utawi paring proporsi langkung saking 50% manawi sampeyan gadhah perkiraan ingkang dipercaya. Saben- saben punika ngurangi jumlah jawaban ingkang dipunperlukan formula.
API — gunakake kalkulator iki saka kode
Panggenan kalkulator iki minangka titik pungkasan JSON gratis - ora ana kunci sing dibutuhaké. Kirimi nilai medan ing ngisor iki minangka parameter pitakonan utawa JSON. Waca dokumen API lengkap →
Titik pungkasan
GET https://calculator.free/api/v1/sample-size/curl
curl "https://calculator.free/api/v1/sample-size/?conf=1.96&e=5"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/sample-size/?" + new URLSearchParams({
"conf": "1.96",
"e": "5"
}));
const data = await r.json();
console.log(data.results);Kajaba iku, ana uga sing ora bisa gawé gawéan, kaya ta dokter, insinyur, lan liya-liyané.