Kalkuleta na Tazarar Amincewa
Game da Wannan Kayan Aikin
Our confidence interval calculator helps you determine the range within which a population parameter (such as the mean or proportion) is likely to fall. Confidence intervals are a key concept in statistics, providing a measure of the uncertainty associated with your sample data.
Shigar da ƙididdigar samfurin ku kuma zaɓi matakin amincewa da kuke so don ƙididdige tazarar.
Menene Tazarar Amincewa?
A confidence interval is a range of values, derived from sample statistics, that is likely to contain the value of an unknown population parameter. The confidence level (e.g., 95%) represents the proportion of intervals that would contain the true parameter if you were to take many samples.
Misali, tazarar amincewar kashi 95% yana nufin cewa idan za mu ɗauki samfurori 100 daban-daban kuma mu ƙididdige tazarar amincewar 95% ga kowane samfurin, to kusan 95 na tazarar amincewar 100 za su ƙunshi madaidaicin yawan jama'a.
Formules Amfani
Tazarar Amincewa don Ma'ana:
CI = x̄ ± (Z or t) * (σ/√n)
Inda x̄ shine ma'anar samfurin, Z ko t shine mahimmancin ƙima, σ shine madaidaicin karkata, kuma n shine girman samfurin.
Tazarar Amincewa don Rabawa:
CI = p̂ ± Z * √(p̂(1-p̂)/n)
Inda p̂ shine ƙimar samfurin, Z shine ƙimar mahimmanci, kuma n shine girman samfurin.
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