Confidence interval for a mean from mean, sd and n using Student t, or a proport
Confidence interval for a mean from mean, sd and n using Student t, or a proportion from successes and n using Wilson, at 50 to 99.9 percent
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Endpoint
GET https://saylorinnovations.com/api/stats/confidence-interval
| Category | Everything else |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | no x402 terms | 404 | 230 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"confidence": "95",
"mean": "50",
"n": "10",
"sd": "10"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"queryParams": {
"properties": {
"confidence": {
"description": "optional percent, 50-99.9, default 95",
"type": "string"
},
"mean": {
"description": "Sample mean (for a mean interval)",
"type": "string"
},
"n": {
"description": "Sample size",
"type": "string"
},
"sd": {
"description": "Sample standard deviation",
"type": "string"
}
},
"required": [
"mean",
"sd",
"n"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"confidence": {
"type": "number"
},
"df": {
"type": [
"number",
"null"
]
},
"kind": {
"description": "Kind of record",
"type": "string"
},
"lower": {
"type": "number"
},
"margin_of_error": {
"description": "Margin of error",
"type": "number"
},
"mean": {
"type": [
"number",
"null"
]
},
"method": {
"description": "Method used",
"type": "string"
},
"n": {
"type": "number"
},
"sd": {
"type": [
"number",
"null"
]
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"standard_error": {
"description": "Standard error",
"type": [
"number",
"null"
]
},
"t_critical": {
"description": "T critical",
"type": [
"number",
"null"
]
},
"upper": {
"type": "number"
}
},
"required": [
"kind",
"lower",
"upper"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}