{"id":730549,"date":"2018-03-14T05:49:14","date_gmt":"2018-03-14T05:49:14","guid":{"rendered":"https:\/\/www.questionpro.com\/blog\/%e5%8d%98%e7%b4%94%e7%84%a1%e4%bd%9c%e7%82%ba%e6%8a%bd%e5%87%ba%e3%80%82%e5%ae%9a%e7%be%a9%e3%81%a8%e4%be%8b\/"},"modified":"2018-03-14T05:49:14","modified_gmt":"2018-03-14T05:49:14","slug":"%e5%8d%98%e7%b4%94%e7%84%a1%e4%bd%9c%e7%82%ba%e6%8a%bd%e5%87%ba%e3%80%82%e5%ae%9a%e7%be%a9%e3%81%a8%e4%be%8b","status":"publish","type":"post","link":"https:\/\/qa-release.questionpro.com\/blog\/ja\/%e5%8d%98%e7%b4%94%e7%84%a1%e4%bd%9c%e7%82%ba%e6%8a%bd%e5%87%ba%e3%80%82%e5%ae%9a%e7%be%a9%e3%81%a8%e4%be%8b\/","title":{"rendered":"\u5358\u7d14\u7121\u4f5c\u70ba\u62bd\u51fa\u3002\u5b9a\u7fa9\u3068\u4f8b"},"content":{"rendered":"<h2><b>\u5358\u7d14\u7121\u4f5c\u70ba\u62bd\u51fa\u3068\u306f\uff1f<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u5358\u7d14\u7121\u4f5c\u70ba\u62bd\u51fa\u306f\u3001\u6bcd\u96c6\u56e3\u306e\u4e2d\u306e\u3059\u3079\u3066\u306e\u9805\u76ee\u304c\u5747\u7b49\u306b\u9078\u3070\u308c\u308b\u78ba\u7387\u3068\u53ef\u80fd\u6027\u3092\u6301\u3064\u624b\u6cd5\u3067\u3042\u308b\u3002 \u3053\u306e\u5834\u5408\u3001\u9805\u76ee\u306e\u9078\u629e\u306f\u3059\u3079\u3066\u904b\u3084\u78ba\u7387\u306b\u4f9d\u5b58\u3059\u308b\u305f\u3081\u3001\u3053\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u624b\u6cd5\u306f\u5076\u7136\u306e\u65b9\u6cd5\u3068\u3082\u547c\u3070\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002  <\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u5358\u7d14\u7121\u4f5c\u70ba\u62bd\u51fa\u306f\u57fa\u672c\u7684\u306a\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u65b9\u6cd5\u3067\u3042\u308a\u3001\u3088\u308a\u8907\u96d1\u306a\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u65b9\u6cd5\u306e\u69cb\u6210\u8981\u7d20\u3068\u306a\u308b\u3053\u3068\u304c\u5bb9\u6613\u3067\u3042\u308b\u3002 \u3053\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u65b9\u6cd5\u306e\u4e3b\u306a\u7279\u5fb4\u306f\u3001\u3069\u306e\u30b5\u30f3\u30d7\u30eb\u3082\u540c\u3058\u78ba\u7387\u3067\u9078\u3070\u308c\u308b\u3053\u3068\u3067\u3059\u3002<\/span><\/p>\n<p style=\"text-align: center;\"><a class=\"square-cta secondary-lined-cta\" href=\"https:\/\/www.questionpro.com\/a\/showEntry.do?mode=audience&amp;sourceRef=blog-audience\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>\u56de\u7b54\u8005\u306e\u9078\u629e<\/strong><\/a><\/p>\n<p><span style=\"font-weight: 400;\">\u3053\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u6cd5\u306b\u304a\u3051\u308b\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u306f\u3001\u5358\u7d14\u7121\u4f5c\u70ba\u62bd\u51fa\u304c\u9069\u5207\u306b\u9069\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u7406\u60f3\u7684\u306b\u306f\u6570\u767e\u4ee5\u4e0a\u3067\u3042\u308b\u3079\u304d\u3067\u3059\u3002 \u3053\u306e\u65b9\u6cd5\u306f\u3001\u7406\u8ad6\u7684\u306b\u306f\u7406\u89e3\u3057\u3084\u3059\u3044\u306e\u3067\u3059\u304c\u3001\u73fe\u5b9f\u7684\u306b\u306f\u96e3\u3057\u3044\u305d\u3046\u3067\u3059\u3002 \u5927\u898f\u6a21\u306a\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u3092\u6271\u3046\u306e\u306f\u7c21\u5358\u306a\u3053\u3068\u3067\u306f\u306a\u304f\u3001\u73fe\u5b9f\u7684\u306a\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30d5\u30ec\u30fc\u30e0\u3092\u898b\u3064\u3051\u308b\u306e\u304c\u96e3\u3057\u3044\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<h2><strong>\u5358\u7d14\u7121\u4f5c\u70ba\u62bd\u51fa\u306e\u65b9\u6cd5<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">\u7814\u7a76\u8005\u306f\u3001\u3053\u308c\u3089\u306e\u65b9\u6cd5\u306b\u5f93\u3063\u3066\u3001\u5358\u7d14\u306a\u7121\u4f5c\u70ba\u6a19\u672c\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/span><\/p>\n<ol>\n<li><span style=\"font-weight: 400;\"> \u6700\u521d\u306b\u5168\u30e1\u30f3\u30d0\u30fc\u306e\u30ea\u30b9\u30c8\u3092\u7528\u610f\u3057\u3001\u5404\u30e1\u30f3\u30d0\u30fc\u306b\u7279\u5b9a\u306e\u756a\u53f7\uff08\u4f8b\u3048\u3070n\u4eba\u76ee\u306e\u30e1\u30f3\u30d0\u30fc\u304c\u3044\u308c\u3070\u30011\u301cN\u306e\u756a\u53f7\uff09\u3092\u4ed8\u3051\u308b\u306e\u3067\u3059\u3002<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u3053\u306e\u6bcd\u96c6\u56e3\u304b\u3089\u3001\u7814\u7a76\u8005\u306f\u4e71\u6570\u8868\u3068\u4e71\u6570\u767a\u751f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e2\u3064\u306e\u65b9\u6cd5\u3067\u7121\u4f5c\u70ba\u306b\u30b5\u30f3\u30d7\u30eb\u3092\u9078\u629e\u3059\u308b\u3002 \u7814\u7a76\u8005\u306f\u3001\u30b5\u30f3\u30d7\u30eb\u306e\u751f\u6210\u306b\u4eba\u9593\u306e\u5e72\u6e09\u304c\u5fc5\u8981\u306a\u3044\u305f\u3081\u3001\u4e71\u6570\u751f\u6210\u30bd\u30d5\u30c8\u3092\u597d\u3080\u3002<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">\u5358\u7d14\u7121\u4f5c\u70ba\u62bd\u51fa\u306e\u904e\u7a0b\u3067\u751f\u3058\u308b\u30d0\u30a4\u30a2\u30b9\u3092\u6700\u5c0f\u5316\u3059\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u305f2\u3064\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u3042\u308b\u3002<\/span><\/p>\n<ul>\n<li>\n<h3><b>\u62bd\u9078\u65b9\u6cd5<\/b><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u62bd\u9078\u6cd5\u306f\u6700\u3082\u53e4\u3044\u65b9\u6cd5\u306e\u4e00\u3064\u3067\u3001\u30e9\u30f3\u30c0\u30e0\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u306e\u6a5f\u68b0\u7684\u306a\u4f8b\u3067\u3042\u308b\u3002 \u3053\u306e\u65b9\u6cd5\u3067\u306f\u3001\u7814\u7a76\u8005\u306f\u6bcd\u96c6\u56e3\u306e\u5404\u30e1\u30f3\u30d0\u30fc\u306b\u6570\u5b57\u3092\u4e0e\u3048\u308b\u3002 \u7814\u7a76\u8005\u306f\u7bb1\u306e\u4e2d\u304b\u3089\u30e9\u30f3\u30c0\u30e0\u306b\u756a\u53f7\u3092\u5f15\u304d\u3001\u30b5\u30f3\u30d7\u30eb\u3092\u9078\u3073\u307e\u3059\u3002<\/span><\/p>\n<ul>\n<li>\n<h3><b>\u4e71\u6570\u306e\u4f7f\u7528<\/b><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u4e71\u6570\u306e\u4f7f\u7528\u306f\u3001\u6bcd\u96c6\u56e3\u306e\u756a\u53f7\u4ed8\u3051\u3082\u884c\u3046\u5225\u306e\u65b9\u6cd5\u3067\u3042\u308b\u3002 \u3053\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u624b\u6cd5\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u6570\u8868\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u6709\u52b9\u3067\u3059\u3002<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-107671\" src=\"https:\/\/usqa.questionpro.com\/blog\/wp-content\/uploads\/2018\/03\/simple-random-sampling-1-1.png\" alt=\"\u5358\u7d14\u7121\u4f5c\u70ba\u62bd\u51fa\" width=\"661\" height=\"294\"><\/p>\n<h2><b>\u5358\u7d14\u7121\u4f5c\u70ba\u62bd\u51fa\u306e\u8a08\u7b97\u5f0f<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u3042\u308b\u75c5\u9662\u306b1000\u4eba\u306e\u30b9\u30bf\u30c3\u30d5\u304c\u3044\u3066\u3001100\u4eba\u306b\u591c\u52e4\u3092\u5272\u308a\u632f\u308b\u5fc5\u8981\u304c\u3042\u308b\u3068\u3057\u307e\u3059\u3002 \u5168\u54e1\u306e\u540d\u524d\u304c\u30d0\u30b1\u30c4\u306b\u5165\u308c\u3089\u308c\u3001\u30e9\u30f3\u30c0\u30e0\u306b\u9078\u3070\u308c\u307e\u3059\u3002 \u5404\u4eba\u304c\u9078\u3070\u308c\u308b\u78ba\u7387\u306f\u7b49\u3057\u304f\u3001\u6bcd\u96c6\u56e3\u306e\u5927\u304d\u3055\uff08N\uff09\u3068\u6a19\u672c\u306e\u5927\u304d\u3055\uff08n\uff09\u304c\u308f\u304b\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u6b21\u306e\u3088\u3046\u306b\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<table class=\"table-border\">\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: center;\"><b>P=1- N-1\/N.N-2\/N-1\u2026.N-n\/N-(n-1)<\/b><\/p>\n<p style=\"text-align: center;\"><b>\u30ad\u30e3\u30f3\u30bb\u30ea\u30f3\u30b0=1-N-n\/N<\/b><\/p>\n<p style=\"text-align: center;\"><b>=n\/N<\/b><\/p>\n<p style=\"text-align: center;\"><b> =100\/1000<\/b><\/p>\n<p style=\"text-align: center;\"><b>=10%<\/b><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><b>\u5358\u7d14\u306a\u30e9\u30f3\u30c0\u30e0\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u306e\u624b\u9806<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u4ee5\u4e0b\u306e\u624b\u9806\u3067\u3001500\u4eba\u306e\u5f93\u696d\u54e1\u306e\u4e2d\u304b\u3089100\u4eba\u306e\u5358\u7d14\u7121\u4f5c\u70ba\u62bd\u51fa\u3092\u884c\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-101304\" src=\"https:\/\/usqa.questionpro.com\/blog\/wp-content\/uploads\/2018\/03\/simple-random-sampling-1.jpg\" alt=\"\u5358\u7d14\u7121\u4f5c\u70ba\u62bd\u51fa\" width=\"992\" height=\"594\"><\/p>\n<ol>\n<li style=\"font-weight: 400;\"><b>\u30ea\u30b9\u30c8\u3092\u4f5c\u6210\u3059\u308b  <\/b><span style=\"font-weight: 400;\">\u7d44\u7e54\u3067\u50cd\u304f\u3059\u3079\u3066\u306e\u5f93\u696d\u54e1\u306e (\u4e0a\u8a18\u306e\u3088\u3046\u306b\u3001\u7d44\u7e54\u306b\u306f500\u4eba\u306e\u5f93\u696d\u54e1\u304c\u3044\u308b\u306e\u3067\u3001\u30ec\u30b3\u30fc\u30c9\u306b\u306f500\u4eba\u306e\u540d\u524d\u304c\u542b\u307e\u308c\u3066\u3044\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093)\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>\u9023\u756a\u3092\u4ed8\u4e0e\u3059\u308b  <\/b><span style=\"font-weight: 400;\">\u3092\u5404\u5f93\u696d\u54e1\uff081,2,3&#8230;n)\u306b\u6e21\u3059\u3002 \u3053\u308c\u304c\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30fb\u30d5\u30ec\u30fc\u30e0\uff08\u5358\u7d14\u7121\u4f5c\u70ba\u62bd\u51fa\u306e\u5bfe\u8c61\u3068\u306a\u308b\u30ea\u30b9\u30c8\uff09\u3067\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>\u30b5\u30f3\u30d7\u30eb\u6570\u3092\u628a\u63e1\u3059\u308b<\/b><span style=\"font-weight: 400;\">. (\u3053\u306e\u5834\u5408\u3001\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u306f100\u3067\u3042\u308b\uff09\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\">\u30b9\u30c6\u30c3\u30d72\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30d5\u30ec\u30fc\u30e0\uff08\u6bcd\u96c6\u56e3\u30b5\u30a4\u30ba\uff09\u3068\u30b9\u30c6\u30c3\u30d73\u306e\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u3092\u4f7f\u7528\u3057\u3066\u3001<b>\u4e71\u6570\u767a\u751f <\/b>\u5668\u3092\u4f7f\u7528\u3057\u3066\u30b5\u30f3\u30d7\u30eb\u3092\u9078\u629e\u3057\u307e\u3059\u3002 \u4f8b\u3048\u3070\u3001\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u304c100\u3067\u6bcd\u96c6\u56e3\u304c500\u306e\u5834\u5408\u30011\u304b\u3089500\u306e\u9593\u3067100\u500b\u306e\u4e71\u6570\u3092\u767a\u751f\u3055\u305b\u307e\u3059\u3002<\/li>\n<\/ol>\n<h3><b>\u8abf\u67fb\u306b\u304a\u3051\u308b\u5358\u7d14\u7121\u4f5c\u70ba\u62bd\u51fa<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u4eca\u65e5\u306e\u5e02\u5834\u8abf\u67fb\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306f\u3001\u3088\u308a\u5927\u898f\u6a21\u3067\u3001\u9805\u76ee\u6570\u3082\u4e0d\u7279\u5b9a\u591a\u6570\u306b\u53ca\u3093\u3067\u3044\u307e\u3059\u3002 \u6bcd\u96c6\u56e3\u306e\u3059\u3079\u3066\u306e\u4eba\u306e\u601d\u8003\u904e\u7a0b\u3092\u7814\u7a76\u3057\u3001\u305d\u3053\u304b\u3089\u5e72\u6e09\u3092\u5c0e\u304d\u51fa\u3059\u3053\u3068\u306f\u73fe\u5b9f\u7684\u306b\u4e0d\u53ef\u80fd\u3067\u3042\u308b\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u7814\u7a76\u8005\u3068\u3057\u3066\u6642\u9593\u3068\u8cbb\u7528\u3092\u7bc0\u7d04\u3057\u305f\u3044\u306e\u3067\u3042\u308c\u3070\u3001\u5358\u7d14\u7121\u4f5c\u70ba\u62bd\u51fa\u306f\u6700\u3082\u9069\u3057\u305f\u78ba\u7387\u7684\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u65b9\u6cd5\u306e1\u3064\u3067\u3059\u3002 \u30b5\u30f3\u30d7\u30eb\u304b\u3089\u306e\u30c7\u30fc\u30bf\u53d6\u5f97\u304c\u3088\u308a\u671b\u307e\u3057\u3044\u3001\u5b9f\u7528\u7684\u3067\u3042\u308b<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u56fd\u52e2\u8abf\u67fb\u3068\u6a19\u672c\u306e\u3069\u3061\u3089\u3092\u4f7f\u3046\u304b\u306f\u3001\u56fd\u52e2\u8abf\u67fb\u306e\u7a2e\u985e\u3001\u5747\u8cea\u6027\/\u7570\u8cea\u6027\u306e\u7a0b\u5ea6\u3001\u30b3\u30b9\u30c8\u3001\u6642\u9593\u3001\u8abf\u67fb\u306e\u5b9f\u73fe\u6027\u3001\u5fc5\u8981\u306a\u7cbe\u5ea6\u306e\u7a0b\u5ea6\u306a\u3069\u3001\u3044\u304f\u3064\u304b\u306e\u8981\u56e0\u306b\u3088\u3063\u3066\u6c7a\u307e\u308a\u307e\u3059\u3002<\/span><\/p>\n<p style=\"text-align: center;\"><a class=\"square-cta secondary-lined-cta\" href=\"https:\/\/www.questionpro.com\/a\/showEntry.do?mode=audience&amp;sourceRef=blog-audience\" target=\"_blank\" rel=\"noopener 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