ayra Statistics
Welcome
Home
Services
Consultation
About
Contact
Sample Size Calculator
Select Calculator Category
📊
Sample Size for Single Mean
5 calculators
📊
To estimate CI for mean - With absolute Error of Margin and no finite correction
📊
To estimate CI for mean - With absolute Error of Margin and finite correction
📊
To hypothesis test about mean - Two tailed test
📊
To hypothesis test about mean - One tailed test
📊
To hypothesis test about Median-Sign Test
📈
Sample Size for difference between means: Independent samples
7 calculators
📈
To estimate CI for difference between means - With absolute Error of Margin and no finite correction
📈
To estimate CI for difference between means - With absolute Error of Margin and finite correction
📈
To hypothesis test about difference between means - Two tailed test
📈
To hypothesis test about difference between means - One tailed test
📈
Equivalence Trial - Equivalence study (a)
📈
Equivalence Trial - Equivalence study (b)
📈
Non-Inferiority Trial
🔗
Sample Size for hypothesis test about difference between means: Related samples
2 calculators
🔗
Paired ‘t’ test
🔗
Crossover Design
📋
Sample Size for Single Proportion
6 calculators
📋
To estimate CI for Proportion - With absolute Error of Margin and no finite correction
📋
To estimate CI for Proportion - With absolute Error of Margin and finite correction
📋
To estimate CI for Proportion - With relative Error of Margin and no finite correction
📋
To estimate CI for Proportion - With relative Error of Margin and finite correction
📋
To hypothesis test about Proportion - Two tailed test
📋
To hypothesis test about Proportion - One tailed test
📉
Sample Size for difference between proportions: Independent samples
6 calculators
📉
To estimate CI for difference between proportions
📉
To hypothesis test about difference between proportions - Two tailed test
📉
To hypothesis test about difference between proportions - One tailed test
📉
Equivalence Trial - Equivalence study (a)
📉
Equivalence Trial - Equivalence study (b)
📉
Non-Inferiority Trial
🔄
Sample Size for hypothesis test about difference between proportion: Related samples
2 calculators
🔄
Two tailed test
🔄
One tailed test
📊
Sample Size for Cohort Study: Relative Risk (RR)
2 calculators
📊
To estimate CI for RR with relative Error of Margin
📊
To hypothesis test about RR
📋
Sample Size for Case-Control Study: Odds Ratio (OR)
2 calculators
📋
To estimate CI for OR with relative Error of Margin
📋
To hypothesis test about OR
🔬
Sample Size for Diagnostic Study
9 calculators
🔬
To estimate CI for Sensitivity/Specificity of a test
🔬
To estimate CI for positive predictive value of a test
🔬
To estimate CI for Negative predictive value of a test
🔬
To estimate CI for LR+ with equal number of cases and controls
🔬
To estimate CI for LR+ with unequal number of cases and controls
🔬
To estimate CI for LR- with equal number of cases and controls
🔬
To estimate CI for LR- with unequal number of cases and controls
🔬
Hypothesis test to compare the sensitivity of a new test with reference test
🔬
Hypothesis test to Compare the sensitivity(Specificity) of two tests say T1 and T2 (Paired Design)
📈
Sample Size Intra Class Correlation Coefficient (ICC)
1 calculator
📈
ICC Sample Size Calculation
🔗
Sample Size Correlation Coefficient
1 calculator
🔗
Correlation Coefficient Sample Size
To estimate CI for mean - With absolute Error of Margin and no finite correction
Confidence Level (%)
Select Confidence Level
90%
95%
99%
Standard Deviation (σ)
Margin of Error (E)
Calculate Sample Size
Calculation Results
--
Required Sample Size
Need Expert Guidance?
For complex study designs or customized sample size calculations, consult with Dashrath Basannar
Schedule Consultation