Kalkulator Interval Kapercayan
Etung interval kapercayan kanggo data sampel kanthi tliti lan gampang.
Kalkulator Interval Kapercayan
Babagan Alat Iki
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.
Ketik statistik sampel lan pilih tingkat kapercayan sing dikarepake kanggo ngetung interval.
Apa Interval Kapercayan?
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.
Contone, interval kapercayan 95% tegese yen kita njupuk 100 conto sing beda lan ngitung interval kapercayan 95% kanggo saben sampel, kira-kira 95 saka 100 interval kapercayan bakal ngemot parameter populasi sing bener.
Formula Digunakake
Interval kapercayan kanggo rata-rata:
CI = x̄ ± (Z or t) * (σ/√n)
Yen x iku rata-rata sampel, Z utawa t minangka nilai kritis, σ minangka standar deviasi, lan n minangka ukuran sampel.
Interval Kapercayan kanggo Proporsi:
CI = p̂ ± Z * √(p̂(1-p̂)/n)
Yen p̂ minangka proporsi sampel, Z minangka nilai kritis, lan n minangka ukuran sampel.
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