{"id":598,"date":"2024-06-19T08:56:52","date_gmt":"2024-06-19T05:56:52","guid":{"rendered":"https:\/\/sisu.ut.ee\/measurement\/self-test-4-5\/"},"modified":"2024-06-19T08:56:52","modified_gmt":"2024-06-19T05:56:52","slug":"self-test-4-5","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/measurement\/self-test-4-5\/","title":{"rendered":"Self-test 4.5"},"content":{"rendered":"<div id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam17\" 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-17\" enctype=\"multipart\/form-data\">\n<div class=\"watu-question \" id=\"question-1\" style=\";\"><div id=\"questionWrap-1\" class=\"   watupro-question-id-71\">\n\t\t\t<div class=\"question-content\"><div><span class=\"watupro_num\">1. <\/span>The result of nickel content (expressed as percentage) determination in a steel sample was the following: (6.75 \u00b1 0.15) %, <em>k<\/em> =2, norm. Which of the following is necessarily true? There are 5 correct answers.<\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_1\" value=\"71\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType71\" class=\"answerTypeCnt1\" value=\"checkbox\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices71\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-71[]\" id=\"answer-id-236\" class=\"answer   answerof-71 \" value=\"236\"><label for=\"answer-id-236\" id=\"answer-label-236\" class=\" answer\"><span><p>The standard uncertainty of nickel content in the sample is 0.15 %<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-71[]\" id=\"answer-id-238\" class=\"answer   answerof-71 \" value=\"238\"><label for=\"answer-id-238\" id=\"answer-label-238\" class=\" answer\"><span><p>The absolute expanded uncertainty of nickel content in the sample is 0.15 %<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-71[]\" id=\"answer-id-240\" class=\"answer   answerof-71 \" value=\"240\"><label for=\"answer-id-240\" id=\"answer-label-240\" class=\" answer\"><span><p>The relative expanded uncertainty of nickel content in the sample is 0.22 %<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-71[]\" id=\"answer-id-243\" class=\"answer   answerof-71 \" value=\"243\"><label for=\"answer-id-243\" id=\"answer-label-243\" class=\" answer\"><span><p><span>The true value of nickel content in the steel sample is\u00a0<\/span><span>between 6.60 and 6.90 % with approximately 95% probability.<\/span><\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-71[]\" id=\"answer-id-239\" class=\"answer   answerof-71 \" value=\"239\"><label for=\"answer-id-239\" id=\"answer-label-239\" class=\" answer\"><span><p>The relative expanded uncertainty of nickel content in the sample is 0.15 %<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-71[]\" id=\"answer-id-237\" class=\"answer   answerof-71 \" value=\"237\"><label for=\"answer-id-237\" id=\"answer-label-237\" class=\" answer\"><span><p>The expanded uncertainty of nickel content in the sample is 0.15 %<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-71[]\" id=\"answer-id-235\" class=\"answer   answerof-71 \" value=\"235\"><label for=\"answer-id-235\" id=\"answer-label-235\" class=\" answer\"><span><p>The uncertainty of nickel content in the sample is 0.15 %<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-71[]\" id=\"answer-id-234\" class=\"answer   answerof-71 \" value=\"234\"><label for=\"answer-id-234\" id=\"answer-label-234\" class=\" answer\"><span><p>The true value of nickel content in the steel sample is surely between 6.60 and 6.90 %<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-71[]\" id=\"answer-id-242\" class=\"answer   answerof-71 \" value=\"242\"><label for=\"answer-id-242\" id=\"answer-label-242\" class=\" answer\"><span><p>The relative expanded uncertainty of nickel content in the sample is 22 %<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-71[]\" id=\"answer-id-233\" class=\"answer   answerof-71 \" value=\"233\"><label for=\"answer-id-233\" id=\"answer-label-233\" class=\" answer\"><span><p>The spread of the parallel determination values is 0.15 %<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-71[]\" id=\"answer-id-241\" class=\"answer   answerof-71 \" value=\"241\"><label for=\"answer-id-241\" id=\"answer-label-241\" class=\" answer\"><span><p>The relative expanded uncertainty of nickel content in the sample is 2.2 %<\/p><\/span><\/label><\/div><!-- end question-choices--><\/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-71\" style=\"clear:both;\"><input type=\"button\" id=\"liveResultBtn71\" class=\"liveResultBtn1 watupro-live-result-btn\" value=\"See Answer\" onclick=\"WatuPRO.liveResult(71, 1);\"><\/p>\n\t   <div class=\"watu-question \" id=\"question-2\" style=\";\"><div id=\"questionWrap-2\" class=\"   watupro-question-id-72\">\n\t\t\t<div class=\"question-content\"><div><span class=\"watupro_num\">2. <\/span>Which are correctly expressed measurement results?<\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_2\" value=\"72\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType72\" class=\"answerTypeCnt2\" value=\"checkbox\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices72\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-72[]\" id=\"answer-id-245\" class=\"answer   answerof-72 \" value=\"245\"><label for=\"answer-id-245\" id=\"answer-label-245\" class=\" answer\"><span><p>Dissolved oxygen level in the water is 5.34 mg\/l with combined standard uncertainty of 0.17 mg\/l.<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-72[]\" id=\"answer-id-246\" class=\"answer   answerof-72 \" value=\"246\"><label for=\"answer-id-246\" id=\"answer-label-246\" class=\" answer\"><span><p>c(Fe) = (5.85 \u00b1 0.1) mg\/kg, k=2, norm.\u00a0<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-72[]\" id=\"answer-id-250\" class=\"answer   answerof-72 \" value=\"250\"><label for=\"answer-id-250\" id=\"answer-label-250\" class=\" answer\"><span><p>c(Zn) = (2.7 \u00b1 0.30) %, k=2, norm.\u00a0<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-72[]\" id=\"answer-id-247\" class=\"answer   answerof-72 \" value=\"247\"><label for=\"answer-id-247\" id=\"answer-label-247\" class=\" answer\"><span><p>Manganese content in the water sample is (3.43 \u00b1 0.43) mg\/kg, k=3, norm.\u00a0<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-72[]\" id=\"answer-id-249\" class=\"answer   answerof-72 \" value=\"249\"><label for=\"answer-id-249\" id=\"answer-label-249\" class=\" answer\"><span><p>c(Pb) = (0.080 \u00b1 0.0614) mg\/kg, k=2, norm.\u00a0<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-72[]\" id=\"answer-id-248\" class=\"answer   answerof-72 \" value=\"248\"><label for=\"answer-id-248\" id=\"answer-label-248\" class=\" answer\"><span><p>The measurement result of zinc content in potato sample is in range of 3.4\u20263.7 mg\/kg with probability of approximately 68%.\u00a0<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-72[]\" id=\"answer-id-244\" class=\"answer   answerof-72 \" value=\"244\"><label for=\"answer-id-244\" id=\"answer-label-244\" class=\" answer\"><span><p>Iron content in the sample is 2.17 mg\/kg with standard uncertainty of 0.05 mg\/kg, k=2, norm.<\/p><\/span><\/label><\/div><!-- end question-choices--><\/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-72\" style=\"clear:both;\"><input type=\"button\" id=\"liveResultBtn72\" class=\"liveResultBtn2 watupro-live-result-btn\" value=\"See Answer\" onclick=\"WatuPRO.liveResult(72, 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=\"watuPROButtons17\">\n\t\t  <div 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