{"uid":"cap_ou3uE4NFLR86o3fLDfzAs","slug":"kihustle-paired-t-test-api-738df758","name":"KiHustle Paired T-Test API","description":"Kostenlose Guides, Solo-Playbooks und Artikel zu KI, Automation und Side Hustles — für Menschen, die mit echten Systemen online Einkommen aufbauen wollen. Transparent finanziert über faire Affiliate-Links.","url":"https://kihustle.tech/api/v1/t-test-paired","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"after":{"type":"array","items":{"type":"number"}},"before":{"type":"array","items":{"type":"number"}}}},"responseSchema":{"type":"json","example":{"result":"processed","status":"success"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ubf8sux7gz1I20NyOvxwo","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Performs a paired (before/after) t-test on two matched numeric arrays and returns a statistical result","exampleAgentPrompt":"Run a paired t-test on these before measurements [12.3, 14.1, 13.7, 15.0, 11.8] and after measurements [13.5, 15.2, 14.9, 16.1, 13.0] and tell me if the difference is statistically significant.","exampleUseCases":[{"title":"A/B experiment significance check","prompt":"I ran a before-and-after experiment on 8 users — their scores before were [55, 60, 58, 62, 50, 57, 63, 61] and after were [60, 65, 61, 67, 55, 62, 68, 66]. Can you run a paired t-test and tell me if the improvement is statistically significant?"},{"title":"Weight loss program evaluation","prompt":"My clients tracked their weights before and after a 4-week program — before: [82.1, 75.3, 90.5, 68.2, 77.4] and after: [80.5, 74.1, 88.9, 67.0, 76.2]. Run a paired t-test to see if the weight reduction is statistically meaningful."},{"title":"Marketing campaign lift analysis","prompt":"I want to know if my marketing campaign actually moved the needle. Conversion rates before the campaign were [0.12, 0.15, 0.11, 0.14, 0.13] and after were [0.17, 0.19, 0.16, 0.18, 0.15] for the same store locations. Do a paired t-test on those."}],"resultDescription":"Returns a JSON object with a 'result' field indicating the outcome of the paired t-test and a 'status' field confirming success. In a well-formed response, this would include the t-statistic, degrees of freedom, and p-value to determine statistical significance of the before-after difference.","failureModes":["Mismatched array lengths between 'before' and 'after' causing computation failure","Empty or null arrays resulting in an error response","Non-numeric values in the input arrays","Arrays with only one element (insufficient degrees of freedom)","Response schema is vague (only 'processed'/'success') — actual statistical values may not be returned"],"whenToPreferThis":"Choose this endpoint when you have paired/matched observations (same subjects measured before and after an intervention) and need to test whether the mean difference is statistically significant. Prefer a paired t-test over an independent samples t-test when the two samples are correlated (e.g., same individuals measured twice). This endpoint is a low-cost, simple API call suitable for lightweight statistical checks in automated pipelines.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T19:02:27.229Z","isFirstParty":false}