{"id":588,"date":"2024-06-19T08:28:06","date_gmt":"2024-06-19T05:28:06","guid":{"rendered":"https:\/\/sisu.ut.ee\/measurement\/self-test-3-6\/"},"modified":"2024-06-19T08:28:06","modified_gmt":"2024-06-19T05:28:06","slug":"self-test-3-6","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/measurement\/self-test-3-6\/","title":{"rendered":"Self-test 3.6"},"content":{"rendered":"<div id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam25\" style=\"display:none;text-align:center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sisu.ut.ee\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-25\" enctype=\"multipart\/form-data\">\n<div class=\"watu-question \" id=\"question-1\" style=\";\"><div id=\"questionWrap-1\" class=\"   watupro-question-id-98\">\n\t\t\t<div class=\"question-content\"><p><span class=\"watupro_num\">1. <\/span>A graph with distribution functions is given. Which line corresponds to which distribution function? Please choose the respective color.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"608\" height=\"417\" class=\"alignnone wp-image-284\" title=\"test3-6-joonis.png\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/18\/test3-6-joonis.png\" alt=\"test3-6-joonis.png\" srcset=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/18\/test3-6-joonis.png 608w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/18\/test3-6-joonis-300x206.png 300w\" sizes=\"auto, (max-width: 608px) 100vw, 608px\"><\/p>\n<p>Which line corresponds to which distribution function:<\/p>\n<p>a) Rectangular distribution <select name=\"gap_98_1\" class=\"watupro-gap answer answerof-98\"><option value=\"\"><\/option><option value=\"light blue\">light blue<\/option><option value=\"yellow\">yellow<\/option><option value=\"violet\">violet<\/option><option value=\"red\">red<\/option><option value=\"dark blue\">dark blue<\/option><option value=\"green\">green<\/option><option value=\"orange\">orange<\/option><\/select><\/p>\n<p>b) Triangular distribution <select name=\"gap_98_2\" class=\"watupro-gap answer answerof-98\"><option value=\"\"><\/option><option value=\"orange\">orange<\/option><option value=\"dark blue\">dark blue<\/option><option value=\"red\">red<\/option><option value=\"violet\">violet<\/option><option value=\"yellow\">yellow<\/option><option value=\"green\">green<\/option><option value=\"light blue\">light blue<\/option><\/select><\/p>\n<p>c) Normal distribution <select name=\"gap_98_3\" class=\"watupro-gap answer answerof-98\"><option value=\"\"><\/option><option value=\"orange\">orange<\/option><option value=\"violet\">violet<\/option><option value=\"light blue\">light blue<\/option><option value=\"dark blue\">dark blue<\/option><option value=\"green\">green<\/option><option value=\"yellow\">yellow<\/option><option value=\"red\">red<\/option><\/select><\/p>\n<p>d) Student distribution <select name=\"gap_98_4\" class=\"watupro-gap answer answerof-98\"><option value=\"\"><\/option><option value=\"orange\">orange<\/option><option value=\"yellow\">yellow<\/option><option value=\"green\">green<\/option><option value=\"light blue\">light blue<\/option><option value=\"red\">red<\/option><option value=\"dark blue\">dark blue<\/option><option value=\"violet\">violet<\/option><\/select><\/p>\n<input type=\"hidden\" name=\"question_id[]\" id=\"qID_1\" value=\"98\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType98\" class=\"answerTypeCnt1\" value=\"gaps\"><!-- end question-content--><\/div><!-- end questionWrap--><\/div>\t\t\t\t\t<div style=\"display:none;\" id=\"liveResult-1\">\t\t   \n\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sisu.ut.ee\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\" alt=\"Loading...\" title=\"Loading...\">\u00a0Loading...\t\t\t\t\t<\/div>\t\n\t\t\t<\/div> \n\t   \t<p id=\"liveResBtn-98\" style=\"clear:both;\"><input type=\"button\" id=\"liveResultBtn98\" class=\"liveResultBtn1 watupro-live-result-btn\" value=\"See Answer\" onclick=\"WatuPRO.liveResult(98, 1);\"><\/p>\n\t   <div class=\"watu-question \" id=\"question-2\" style=\";\"><div id=\"questionWrap-2\" class=\"   watupro-question-id-125\">\n\t\t\t<div class=\"question-content\"><p><span class=\"watupro_num\">2. <\/span>Cu content in drinking water was determined and the results are:<\/p>\n<table style=\"height: 140px; width: 15.7005%; border-collapse: collapse;\" border=\"1\">\n<tbody>\n<tr style=\"height: 27px;\">\n<td style=\"width: 100%; height: 27px; text-align: center; border-style: solid; border-color: #e3e3e3;\"><em>C<\/em><sub>Cu<\/sub> (mg\/l)<\/td>\n<\/tr>\n<tr style=\"height: 23px;\">\n<td style=\"width: 100%; text-align: center; height: 23px; border-style: solid; border-color: #e3e3e3;\">0.276<\/td>\n<\/tr>\n<tr style=\"height: 23px;\">\n<td style=\"width: 100%; text-align: center; height: 23px; border-style: solid; border-color: #e3e3e3;\">0.329<\/td>\n<\/tr>\n<tr style=\"height: 23px;\">\n<td style=\"width: 100%; text-align: center; height: 23px; border-style: solid; border-color: #e3e3e3;\">0.242<\/td>\n<\/tr>\n<tr style=\"height: 23px;\">\n<td style=\"width: 100%; text-align: center; height: 21px; border-style: solid; border-color: #e3e3e3;\">0.321<\/td>\n<\/tr>\n<tr style=\"height: 23px;\">\n<td style=\"width: 100%; text-align: center; height: 23px; border-style: solid; border-color: #e3e3e3;\">0.267<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Please calculate the half-width of the confidence interval at 95% probability for the arithmetic mean of copper concentrations found in a drinking water sample. Please give the answer with 2 significant digits and don't forget correct unit!<\/p>\n<p><input type=\"text\" size=\"10\" name=\"gap_125_1\" class=\"watupro-gap answer answerof-125\" value=\"\"><\/p>\n<p>Please calculate the confidence interval at 95% probability for the arithmetic mean of copper concentrations found in a drinking water sample.<\/p>\n<p>A. Please present here the lower limit of the 95% confidence interval with the same number of significant digits that is the initial data.<\/p>\n<p><input type=\"text\" size=\"10\" name=\"gap_125_2\" class=\"watupro-gap answer answerof-125\" value=\"\"><\/p>\n<p>B. Please present here the higher limit of the 95% confidence interval with the same number of significant digits that is the initial data.<\/p>\n<p><input type=\"text\" size=\"10\" name=\"gap_125_3\" class=\"watupro-gap answer answerof-125\" value=\"\"><\/p>\n<p>Here are some clues!<\/p>\n<div class=\"h5p-iframe-wrapper\"><div class=\"video-placeholder-wrapper video-placeholder-wrapper--fixed\" style=\"height: 366px;\">\n\t\t\t    <div class=\"video-placeholder d-flex justify-content-center align-items-center\">\n\t\t\t        <div class=\"overlay text-white p-2 w-100 text-center d-block justify-content-center align-items-center\">\n\t\t\t            <div>To view third-party content, please accept cookies.<\/div>\n\t\t\t            <button class=\"btn btn-secondary btn-sm mt-1 consent-change\">Change consent<\/button>\n\t\t\t        <\/div>\n\t\t\t    <\/div>\n\t\t\t<\/div>\n<\/div>\n<input type=\"hidden\" name=\"question_id[]\" id=\"qID_2\" value=\"125\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType125\" class=\"answerTypeCnt2\" value=\"gaps\"><!-- end question-content--><\/div><!-- end questionWrap--><\/div>\t\t\t\t\t<div style=\"display:none;\" id=\"liveResult-2\">\t\t   \n\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sisu.ut.ee\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\" alt=\"Loading...\" title=\"Loading...\">\u00a0Loading...\t\t\t\t\t<\/div>\t\n\t\t\t<\/div> \n\t   \t<p id=\"liveResBtn-125\" style=\"clear:both;\"><input type=\"button\" id=\"liveResultBtn125\" class=\"liveResultBtn2 watupro-live-result-btn\" value=\"See Answer\" onclick=\"WatuPRO.liveResult(125, 2);\"><\/p>\n\t   <div style=\"display:none\" id=\"question-3\">\n\t<div class=\"question-content\">\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sisu.ut.ee\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\" alt=\"Loading...\" title=\"Loading...\">\u00a0Loading...\t<\/div>\n<\/div>\n\n<br>\n\t\n\t\t\t<div class=\"watupro_buttons flex \" id=\"watuPROButtons25\">\n\t\t  <div id=\"prev-question\" style=\"display:none;\"><input type=\"button\" value=\"&lt; Previous\" onclick=\"WatuPRO.nextQuestion(event, 'previous');\"><\/div>\t\t  \t\t  \t\t   \n\t\t   \t  \t\t<div><input type=\"button\" name=\"action\" class=\"watupro-submit-button\" onclick=\"WatuPRO.submitResult(event)\" id=\"action-button\" value=\"View Results\">\n\t\t<\/div>\n\t\t<\/div>\n\t\t\n\t<input type=\"hidden\" name=\"quiz_id\" value=\"25\" id=\"watuPROExamID\">\n\t<input type=\"hidden\" name=\"start_time\" id=\"startTime\" value=\"2026-04-11 00:28:52\">\n\t<input type=\"hidden\" name=\"start_timestamp\" id=\"startTimeStamp\" value=\"1775867332\">\n\t<input type=\"hidden\" name=\"question_ids\" value=\"\">\n\t<input type=\"hidden\" name=\"watupro_questions\" value=\"98: | 125:\">\n\t<input type=\"hidden\" name=\"no_ajax\" value=\"0\">\t\t\t<\/form>\n\t<p>\u00a0<\/p>\n<\/div>\n\n<script type=\"text\/javascript\">\n\/\/jQuery(document).ready(function(){\ndocument.addEventListener(\"DOMContentLoaded\", function(event) { \t\nvar question_ids = \"98,125\";\nWatuPROSettings[25] = {};\nWatuPRO.qArr = question_ids.split(',');\nWatuPRO.exam_id = 25;\t    \nWatuPRO.post_id = 588;\nWatuPRO.store_progress = 0;\nWatuPRO.curCatPage = 1;\nWatuPRO.requiredIDs=\"0\".split(\",\");\nWatuPRO.hAppID = \"0.34136600 1775856532\";\nvar url = \"https:\/\/sisu.ut.ee\/wp-content\/plugins\/watupro\/show_exam.php\";\nWatuPRO.examMode = 1;\nWatuPRO.siteURL=\"https:\/\/sisu.ut.ee\/measurement\/wp-admin\/admin-ajax.php\";\nWatuPRO.emailIsNotRequired = 0;\nWatuPRO.perDecade = 10;\nWatuPROIntel.init(25);\nWatuPRO.inCategoryPages=1;});    \t \n<\/script>\n\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":280,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-588","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sisu.ut.ee\/measurement\/wp-json\/wp\/v2\/pages\/588","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sisu.ut.ee\/measurement\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sisu.ut.ee\/measurement\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/measurement\/wp-json\/wp\/v2\/users\/280"}],"replies":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/measurement\/wp-json\/wp\/v2\/comments?post=588"}],"version-history":[{"count":0,"href":"https:\/\/sisu.ut.ee\/measurement\/wp-json\/wp\/v2\/pages\/588\/revisions"}],"wp:attachment":[{"href":"https:\/\/sisu.ut.ee\/measurement\/wp-json\/wp\/v2\/media?parent=588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}