{"id":1144,"date":"2015-08-28T20:24:16","date_gmt":"2015-08-28T19:24:16","guid":{"rendered":"http:\/\/stg-blogs.bmj.com\/adc\/?p=1144"},"modified":"2015-07-28T09:33:32","modified_gmt":"2015-07-28T08:33:32","slug":"statsminiblog-confidence-intervals","status":"publish","type":"post","link":"https:\/\/stg-blogs.bmj.com\/adc\/2015\/08\/28\/statsminiblog-confidence-intervals\/","title":{"rendered":"StatsMiniBlog: Confidence Intervals"},"content":{"rendered":"

\"20140205-091454.jpg\"<\/a> As its summer time & thoughts of exciting summer camps expanding skills, or time spent catching up with missed opportunities, or indeed just beer & strawberries, are filling our lives it seems appropriate to go entirely left field and explore confidence intervals.<\/p>\n

Confidence intervals describe – in terms of interpretation – the range of values where we think the real truth lies<\/a> (x% of the time – where the ‘x%’ is the number that sits before the CI)*<\/p>\n

They are a measure of the precision<\/a> of our estimate. They can described almost any quantity – the mean, odds ratios, test sensitivity …<\/p>\n

Mostly we see 95% CI; this sort of corresponds to our desire for p-values<\/a> of <0.05. We sometimes see 99% CI – even more sure the truth is in here – or occasionally 90% – wanting desperately to sell us a Thing, usually.<\/p>\n

\"img1\"<\/a><\/p>\n

– Archi<\/p>\n

* You’ll note that a 95% CI means we are WRONG 5% OF THE TIME<\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

As its summer time & thoughts of exciting summer camps expanding skills, or time spent catching up with missed opportunities, or indeed just beer & strawberries, are filling our lives it seems appropriate to go entirely left field and explore confidence intervals. Confidence intervals describe – in terms of interpretation – the range of values […]<\/p>\n

Read More…<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2676],"tags":[],"class_list":["post-1144","post","type-post","status-publish","format-standard","hentry","category-stats"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/stg-blogs.bmj.com\/adc\/wp-json\/wp\/v2\/posts\/1144","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stg-blogs.bmj.com\/adc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/stg-blogs.bmj.com\/adc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/stg-blogs.bmj.com\/adc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/stg-blogs.bmj.com\/adc\/wp-json\/wp\/v2\/comments?post=1144"}],"version-history":[{"count":0,"href":"https:\/\/stg-blogs.bmj.com\/adc\/wp-json\/wp\/v2\/posts\/1144\/revisions"}],"wp:attachment":[{"href":"https:\/\/stg-blogs.bmj.com\/adc\/wp-json\/wp\/v2\/media?parent=1144"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stg-blogs.bmj.com\/adc\/wp-json\/wp\/v2\/categories?post=1144"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stg-blogs.bmj.com\/adc\/wp-json\/wp\/v2\/tags?post=1144"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}