{"presentation":{"slides":[{"elements":[{"x":39.651416122004356,"y":0,"width":60.348583877995644,"height":73.11827956989247,"action":{"library":"H5P.Image 1.1","params":{"contentName":"Image","file":{"path":"images\/file-5f29c6d568a28.jpg","mime":"image\/jpeg","copyright":{"license":"U"},"width":791,"height":486},"alt":"Denver Post poll"},"subContentId":"8103a466-30a3-4a55-a4e4-95e84c541dd8","metadata":{"contentType":"Image","license":"U","title":"Untitled Image"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""},{"x":2.178649237472767,"y":17.194215053763443,"width":46.84095860566449,"height":79.56989247311827,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"

In September 2016, a newspaper in the U.S. (the Denver Post<\/em>) asked readers how much they relied on newspaper endorsements to inform their decision about which U.S. presidential candidate to vote for.<\/p>\n\n

Of the 4,390<\/strong> readers who responded to the online poll, 75%<\/strong> said \"not at all\" and another 13%<\/strong> said \"not much,\" while only 12%<\/strong> (or 9.36 + 2.23) said \"a lot\" or \"somewhat.\" <\/p>\n\n

Based on this survey, can we conclude that about 88% of U.S. (or Denver) citizens pay little to no attention to newspaper endorsements? Why or why not?<\/em><\/p>\n\n

Before moving onto the next slide, think about these questions, and jot down some thoughts in your notes. Then, click to the next slide to see the answers. <\/p>\n"},"subContentId":"48945cdb-c8c8-4c58-9de6-f371923a4a3e","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}},{"elements":[{"x":39.651416122004356,"y":0,"width":60.348583877995644,"height":73.11827956989247,"action":{"library":"H5P.Image 1.1","params":{"contentName":"Image","file":{"path":"images\/file-5f29c6d568a28.jpg","mime":"image\/jpeg","copyright":{"license":"U"},"width":791,"height":486},"alt":"Denver Post poll"},"subContentId":"8103a466-30a3-4a55-a4e4-95e84c541dd8","metadata":{"contentType":"Image","license":"U","title":"Untitled Image"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""},{"x":2.178649237472767,"y":17.18415053763441,"width":46.84095860566449,"height":68.81720430107526,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"

It is not likely that the sample <\/strong>of survey respondents is representative of either the U.S. or Denver citizen population<\/strong>.<\/p>\n\n

Those who responded to the survey happened to see the poll posted to the Denver Post<\/em>'s website and take the time to respond. <\/p>\n\n

If we wanted to use this sample of poll-takers to infer something about the population, we'd have to know a lot more about who reads this particular newspaper, who reads it online, who saw the poll, and who took the time to respond to the poll. Without this information, it's really unclear who the relevant population really is. <\/p>\n"},"subContentId":"48945cdb-c8c8-4c58-9de6-f371923a4a3e","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}},{"elements":[{"x":0,"y":0,"width":56.10021786492375,"height":62.36559139784946,"action":{"library":"H5P.Image 1.1","params":{"contentName":"Image","file":{"path":"images\/file-5f29c93847fd0.jpg","mime":"image\/jpeg","copyright":{"license":"U"},"width":1040,"height":585}},"subContentId":"13368dab-05eb-4037-bb80-58f57ee63a9b","metadata":{"contentType":"Image","license":"U","title":"Untitled Image"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""},{"x":59.912854030501094,"y":12.903225806451612,"width":38.12636165577342,"height":40,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"

On the eve of the \"Brexit\" vote in June 2016, prominent polling firm YouGov predicted a 52-48<\/strong> \"Remain\" victory. In other words, they predicted that 52% of UK voters would vote to remain in the European Union, and 48% would vote to leave the EU.<\/p>\n\n

But the actual result of election was the opposite<\/strong>: 52% of UK voters said \"Leave\" while 48% said \"Remain.\"<\/p>\n"},"subContentId":"8debe23d-7c7f-43b3-944d-47fb0b75ea1d","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""},{"x":6.5359477124183005,"y":75.26881720430107,"width":87.14596949891067,"height":17.204301075268816,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"

What do you think accounts for the discrepancy between the predicted vote and the actual results? <\/em><\/p>\n\n

In your notes, jot down some reasons that might explain this discrepancy. Then, click to the next slide.<\/p>\n"},"subContentId":"b52208ee-9ad8-4e0d-b846-952c1af8bf4f","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}},{"elements":[{"x":0,"y":0,"width":56.10021786492375,"height":62.36559139784946,"action":{"library":"H5P.Image 1.1","params":{"contentName":"Image","file":{"path":"images\/file-5f29c93847fd0.jpg","mime":"image\/jpeg","copyright":{"license":"U"},"width":1040,"height":585}},"subContentId":"13368dab-05eb-4037-bb80-58f57ee63a9b","metadata":{"contentType":"Image","license":"U","title":"Untitled Image"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""},{"x":59.912854030501094,"y":2.150537634408602,"width":38.12636165577342,"height":73.11827956989247,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"

There are a lot of reasons why the predicted and actual vote might differ, including:<\/p>\n\n

\n\t
Those polled were not representative<\/em> of those who actually went to the polls the next day.<\/li>\n\t
Responses on a survey may be poor measures<\/em> of how people actually intend to vote.<\/li>\n\t
There may have been shifts in attitudes<\/em> during the last day prior to voting.<\/li>\n\t
There may have been unpredictable patterns<\/em> in who showed up to vote. <\/li>\n<\/ul>\n"},"subContentId":"8debe23d-7c7f-43b3-944d-47fb0b75ea1d","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""},{"x":2.178649237472767,"y":83.87096774193547,"width":95.86056644880175,"height":10.75268817204301,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"
Both of these examples (the Denver Post<\/em> poll and the Brexit prediction) who that how data is collected<\/em> is vitally important to the claims we can make when using statistics.<\/p>\n"},"subContentId":"3761fa39-1fc2-4dcc-933e-2989a28c4b8f","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}},{"elements":[{"x":10.893246187363834,"y":4.301075268817204,"width":77.2331154684096,"height":53.76344086021505,"action":{"library":"H5P.Image 1.1","params":{"contentName":"Image","file":{"path":"images\/file-5f29cb71a145b.png","mime":"image\/png","copyright":{"license":"U"},"width":717,"height":253}},"subContentId":"230e8541-7884-4285-85ba-6625567cc83d","metadata":{"contentType":"Image","license":"U","title":"Untitled Image"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""},{"x":23.965141612200437,"y":66.66666666666666,"width":53.050108932461875,"height":30.10752688172043,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"
The CBC <\/em>recently reported on how Calgary families' taxes and fees would change under a proposed city budget. <\/p>\n\n
What does an average like this tell us? What doesn't <\/strong>it tell us?<\/em><\/p>\n"},"subContentId":"92eab01f-ec5c-4dc6-9005-329274a040d5","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}},{"elements":[{"x":10.893246187363834,"y":4.301075268817204,"width":77.2331154684096,"height":53.76344086021505,"action":{"library":"H5P.Image 1.1","params":{"contentName":"Image","file":{"path":"images\/file-5f29cb71a145b.png","mime":"image\/png","copyright":{"license":"U"},"width":717,"height":253}},"subContentId":"230e8541-7884-4285-85ba-6625567cc83d","metadata":{"contentType":"Image","license":"U","title":"Untitled Image"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""},{"x":11.546840958605666,"y":66.45161290322581,"width":77.01525054466231,"height":32.25806451612903,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"
Here, we have to be careful about how we interpret this average. While this number tells us how much some families <\/em>might expect their taxes and fees to increase by, this single number does not give us a sense of the variation<\/strong> around that projected $113 change. <\/p>\n\n
For instance, we might also want to know: What's the smallest amount a family's taxes and fees could change by? What's the largest amount? How many, or what percentage of, families could experience a change of less or more than $113? <\/p>\n"},"subContentId":"92eab01f-ec5c-4dc6-9005-329274a040d5","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}}],"keywordListEnabled":true,"globalBackgroundSelector":{"fillGlobalBackground":"#ffffff"},"keywordListAlwaysShow":false,"keywordListAutoHide":false,"keywordListOpacity":90},"override":{"activeSurface":false,"hideSummarySlide":false,"summarySlideSolutionButton":true,"summarySlideRetryButton":true,"enablePrintButton":false,"social":{"showFacebookShare":false,"facebookShare":{"url":"@currentpageurl","quote":"I scored @score out of @maxScore on a task at @currentpageurl."},"showTwitterShare":false,"twitterShare":{"statement":"I scored @score out of @maxScore on a task at @currentpageurl.","url":"@currentpageurl","hashtags":"h5p, course"},"showGoogleShare":false,"googleShareUrl":"@currentpageurl"}},"l10n":{"slide":"Slide","score":"Score","yourScore":"Your Score","maxScore":"Max Score","total":"Total","totalScore":"Total Score","showSolutions":"Show solutions","retry":"Retry","exportAnswers":"Export text","hideKeywords":"Hide sidebar navigation menu","showKeywords":"Show sidebar navigation menu","fullscreen":"Fullscreen","exitFullscreen":"Exit fullscreen","prevSlide":"Previous slide","nextSlide":"Next slide","currentSlide":"Current slide","lastSlide":"Last slide","solutionModeTitle":"Exit solution mode","solutionModeText":"Solution Mode","summaryMultipleTaskText":"Multiple tasks","scoreMessage":"You achieved:","shareFacebook":"Share on Facebook","shareTwitter":"Share on Twitter","shareGoogle":"Share on Google+","summary":"Summary","solutionsButtonTitle":"Show comments","printTitle":"Print","printIngress":"How would you like to print this presentation?","printAllSlides":"Print all slides","printCurrentSlide":"Print current slide","noTitle":"No title","accessibilitySlideNavigationExplanation":"Use left and right arrow to change slide in that direction whenever canvas is selected.","accessibilityCanvasLabel":"Presentation canvas. Use left and right arrow to move between slides.","containsNotCompleted":"@slideName contains not completed interaction","containsCompleted":"@slideName contains completed interaction","slideCount":"Slide @index of @total","containsOnlyCorrect":"@slideName only has correct answers","containsIncorrectAnswers":"@slideName has incorrect answers","shareResult":"Share Result","accessibilityTotalScore":"You got @score of @maxScore points in total","accessibilityEnteredFullscreen":"Entered fullscreen","accessibilityExitedFullscreen":"Exited fullscreen"}}