P-Value Calculator (kuchokera Z)
Kusintha z-score kuti p-value imodzi kapena ziwiri-m'mbali.
Zithunzizi zimasintha monga momwe mumalemba.
Zachidule
small p-value means that your data would be surprising under the null hypothesis, which counts as evidence against it. A large p-value means that your data would be surprising under the null hypothesis, which counts as evidence against it. A large p-value means that your data would be surprising under the null hypothesis, which counts as evidence against it. A large p-value means that your data would be surprising under the null hypothesis, which counts as evidence against it. A large p-value means that your data would be surprising
Mafunso ofunsidwa nthawi zambiri
Kodi ndi chiyani p-value?
P-value ndi kuthekera, poganiza kuti null hypothesis ndi zoona, kulandira chitsimikizo stat osachepera monga extreme monga wina anaona. A ochepa p-value kumatanthauza kuti deta yanu ndi osadabwitsa pansi null hypothesis, amene ndi umboni wotsutsana nayo.
Kodi ndi chiyani chimasiyana pakati pa mfundo ya p yokhala ndi maonekedwe awiri ndi mfundo ya p yokhala ndi maonekedwe amodzi?
A two-tailed kuyesa amawerengera zotsatira zosayembekezereka m'madera awiri, kotero yake p-value ndi double the one-tailed mtengo kwa |z|. kugwiritsa ntchito two-tailed pamene inu kungoganizira kuti pali kusiyana, ndi one-tailed pamene inu anayembekezera m'madera awiri.
Kodi p < 0.05 nthawi zonse ndi yofunika?
0.05 ndi lamulo lokha, si malamulo. Zimatanthauza kuti pali mwayi wa 5% wa kukayikira. Kutengera ndi nyanja ndi mtengo wokhala wopanda pake, maziko olimba monga 0.01 nthawi zambiri amakhala oyenera.
Kodi ndingasinthe bwanji z-score kuti p-value?
Onani kutalika kwa malire a standard- normal distribution m'mbali mwa z- score yanu. Izi zida zimachita izi kwa inu: malire a kumanzere ndi P(Z ≤ z), malire a kumanzere ndi 1 − P(Z ≤ z), ndipo malire awiri a p-value amadutsa malire awiriwa.
Kodi mfundo ya p yochuluka imasonyeza kuti mfundo yopanda malire ndi yoyenera?
Palibe. A lalikulu p-value kumatanthauza kuti data yanu ndi yogwirizana ndi null hypothesis, si kuti null ndi kutsimikiziridwa. Kuyang'ana zosonyeza kuti ndi zosonyeza kuti si; mukhoza kungokhala ndi kukula kwa chitsanzo kuzindikira zotsatira.
Kodi ndiyenera kugwiritsa ntchito z-kugwirizana p-value m'malo mwa t-kugwirizana mmodzi?
Kugwiritsa ntchito z-based mtengo pamene standard deviation ya anthu ndi yodziwika kapena mzere ndi lalikulu (kuzungulira n ≥ 30). Kwa mzere waing'ono ndi standard deviation wowerengedwa, t-kugawa amapatsa zambiri zoyenera p-mtengo.
Kodi pali kusiyana kotani pakati pa mfundo ya p ndi mfundo yofunika kwambiri?
Kuwala
API — kugwiritsa ntchito izi calculator kuchokera code
Kulemba izi calculator monga ufulu JSON endpoint - palibe chida zofunika. Kutumiza nyanja mfundo pansipa monga mafunso zigawo kapena JSON. Onani zonse API docs →
Chithunzi
GET https://calculator.free/api/v1/p-value/curl
curl "https://calculator.free/api/v1/p-value/?z=1.96&tail=two"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/p-value/?" + new URLSearchParams({
"z": "1.96",
"tail": "two"
}));
const data = await r.json();
console.log(data.results);Zimenezi ndi zowerengera zokhudzana ndi malangizo amtundu uliwonse, si zokhudzana ndi ndalama, zamoyo kapena zokhudzana ndi ndalama.