{ "info": { "_postman_id": "8822e313-d0d3-4970-9216-59526249ecba", "name": "Dowell Sample Size API", "description": "**The Sample Size Calculator API is a tool designed to assist researchers, analysts, and data scientists in determining the appropriate sample size for a given population, variance, error tolerance, and confidence interval. This API streamlines the process of calculating sample sizes for various statistical analyses, ensuring that your studies are statistically sound and reliable.**", "schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json", "_exporter_id": "31707616" }, "item": [ { "name": "1. Both Population and Standard Deviation is available.", "request": { "method": "POST", "header": [], "body": { "mode": "raw", "raw": "{\r\n \"population_size\": 10000,\r\n \"error\": 0.5,\r\n \"confidence_level\": 0.90,\r\n \"standard_deviation\":0.5\r\n}", "options": { "raw": { "language": "json" } } }, "url": { "raw": "http://100102.pythonanywhere.com/sample-size//", "protocol": "http", "host": [ "100102", "pythonanywhere", "com" ], "path": [ "sample-size", "", "" ] } }, "response": [ { "name": "Both Population and Standard Deviation is available.", "originalRequest": { "method": "POST", "header": [], "body": { "mode": "raw", "raw": "{\r\n \"population_size\": 10000,\r\n \"error\": 0.5,\r\n \"confidence_level\": 0.90,\r\n \"standard_deviation\":0.5\r\n}", "options": { "raw": { "language": "json" } } }, "url": { "raw": "http://100102.pythonanywhere.com/sample-size//", "protocol": "http", "host": [ "100102", "pythonanywhere", "com" ], "path": [ "sample-size", "", "" ] } }, "status": "OK", "code": 200, "_postman_previewlanguage": "json", "header": [ { "key": "Date", "value": "Tue, 29 Aug 2023 11:21:57 GMT" }, { "key": "Content-Type", "value": "application/json" }, { "key": "Content-Length", "value": "117" }, { "key": "Connection", "value": "keep-alive" }, { "key": "Vary", "value": "origin" }, { "key": "X-Frame-Options", "value": "DENY" }, { "key": "X-Content-Type-Options", "value": "nosniff" }, { "key": "Referrer-Policy", "value": "same-origin" }, { "key": "Cross-Origin-Opener-Policy", "value": "same-origin" }, { "key": "X-Clacks-Overhead", "value": "GNU Terry Pratchett" }, { "key": "Server", "value": "PythonAnywhere" } ], "cookie": [], "body": "{\n \"sample_size\": 2.7052929409669417,\n \"process_time\": 0.817846725,\n \"method_used\": \"finite_population\",\n \"success\": true\n}" } ] }, { "name": "2. Population is available and Standard Deviation is not available.", "request": { "method": "POST", "header": [], "body": { "mode": "raw", "raw": "{\r\n \"population_size\": 10000,\r\n \"error\": 0.5,\r\n \"confidence_level\": 0.90\r\n}", "options": { "raw": { "language": "json" } } }, "url": { "raw": "http://100102.pythonanywhere.com/sample-size//", "protocol": "http", "host": [ "100102", "pythonanywhere", "com" ], "path": [ "sample-size", "", "" ] } }, "response": [ { "name": "Population is available and Standard Deviation is not available.", "originalRequest": { "method": "POST", "header": [], "body": { "mode": "raw", "raw": "{\r\n \"population_size\": 10000,\r\n \"error\": 0.5,\r\n \"confidence_level\": 0.90\r\n}", "options": { "raw": { "language": "json" } } }, "url": { "raw": "http://100102.pythonanywhere.com/sample-size//", "protocol": "http", "host": [ "100102", "pythonanywhere", "com" ], "path": [ "sample-size", "", "" ] } }, "status": "OK", "code": 200, "_postman_previewlanguage": "json", "header": [ { "key": "Date", "value": "Tue, 29 Aug 2023 11:22:56 GMT" }, { "key": "Content-Type", "value": "application/json" }, { "key": "Content-Length", "value": "89" }, { "key": "Connection", "value": "keep-alive" }, { "key": "Vary", "value": "origin" }, { "key": "X-Frame-Options", "value": "DENY" }, { "key": "X-Content-Type-Options", "value": "nosniff" }, { "key": "Referrer-Policy", "value": "same-origin" }, { "key": "Cross-Origin-Opener-Policy", "value": "same-origin" }, { "key": "X-Clacks-Overhead", "value": "GNU Terry Pratchett" }, { "key": "Server", "value": "PythonAnywhere" } ], "cookie": [], "body": "{\n \"sample_size\": 4,\n \"process_time\": 0.838542467,\n \"method_used\": \"slovin\",\n \"success\": true\n}" } ] }, { "name": "3. Population is not available and Standard Deviation is available.", "request": { "method": "POST", "header": [], "body": { "mode": "raw", "raw": "{\r\n \"error\": 0.5,\r\n \"confidence_level\": 0.90,\r\n \"standard_deviation\":0.5\r\n}", "options": { "raw": { "language": "json" } } }, "url": { "raw": "http://100102.pythonanywhere.com/sample-size//", "protocol": "http", "host": [ "100102", "pythonanywhere", "com" ], "path": [ "sample-size", "", "" ] } }, "response": [ { "name": "Population is not available and Standard Deviation is available.", "originalRequest": { "method": "POST", "header": [], "body": { "mode": "raw", "raw": "{\r\n \"error\": 0.5,\r\n \"confidence_level\": 0.90,\r\n \"standard_deviation\":0.5\r\n}", "options": { "raw": { "language": "json" } } }, "url": { "raw": "http://100102.pythonanywhere.com/sample-size//", "protocol": "http", "host": [ "100102", "pythonanywhere", "com" ], "path": [ "sample-size", "", "" ] } }, "status": "OK", "code": 200, "_postman_previewlanguage": "json", "header": [ { "key": "Date", "value": "Tue, 29 Aug 2023 11:24:04 GMT" }, { "key": "Content-Type", "value": "application/json" }, { "key": "Content-Length", "value": "109" }, { "key": "Connection", "value": "keep-alive" }, { "key": "Vary", "value": "origin" }, { "key": "X-Frame-Options", "value": "DENY" }, { "key": "X-Content-Type-Options", "value": "nosniff" }, { "key": "Referrer-Policy", "value": "same-origin" }, { "key": "Cross-Origin-Opener-Policy", "value": "same-origin" }, { "key": "X-Clacks-Overhead", "value": "GNU Terry Pratchett" }, { "key": "Server", "value": "PythonAnywhere" } ], "cookie": [], "body": "{\n \"sample_size\": 2.706025,\n \"process_time\": 0.853663696,\n \"method_used\": \"infinite_population\",\n \"success\": true\n}" } ] }, { "name": "4. Both Population and Standard Deviation is not available.", "request": { "method": "POST", "header": [], "body": { "mode": "raw", "raw": "{\r\n \"error\": 0.5,\r\n \"confidence_level\": 0.90\r\n}", "options": { "raw": { "language": "json" } } }, "url": { "raw": "http://100102.pythonanywhere.com/sample-size//", "protocol": "http", "host": [ "100102", "pythonanywhere", "com" ], "path": [ "sample-size", "", "" ] } }, "response": [ { "name": "Both Population and Standard Deviation is not available.", "originalRequest": { "method": "POST", "header": [], "body": { "mode": "raw", "raw": "{\r\n \"error\": 0.5,\r\n \"confidence_level\": 0.90\r\n}", "options": { "raw": { "language": "json" } } }, "url": { "raw": "http://100102.pythonanywhere.com/sample-size//", "protocol": "http", "host": [ "100102", "pythonanywhere", "com" ], "path": [ "sample-size", "", "" ] } }, "status": "OK", "code": 200, "_postman_previewlanguage": "json", "header": [ { "key": "Date", "value": "Tue, 29 Aug 2023 11:24:43 GMT" }, { "key": "Content-Type", "value": "application/json" }, { "key": "Content-Length", "value": "89" }, { "key": "Connection", "value": "keep-alive" }, { "key": "Vary", "value": "origin" }, { "key": "X-Frame-Options", "value": "DENY" }, { "key": "X-Content-Type-Options", "value": "nosniff" }, { "key": "Referrer-Policy", "value": "same-origin" }, { "key": "Cross-Origin-Opener-Policy", "value": "same-origin" }, { "key": "X-Clacks-Overhead", "value": "GNU Terry Pratchett" }, { "key": "Server", "value": "PythonAnywhere" } ], "cookie": [], "body": "{\n \"sample_size\": 4,\n \"process_time\": 0.867834687,\n \"method_used\": \"slovin\",\n \"success\": true\n}" } ] } ] }