{"id":487,"date":"2024-04-09T00:53:42","date_gmt":"2024-04-09T04:53:42","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/1130sandbox\/?post_type=part&#038;p=487"},"modified":"2024-07-24T10:20:40","modified_gmt":"2024-07-24T14:20:40","slug":"measures-of-variance","status":"publish","type":"part","link":"https:\/\/pressbooks.bccampus.ca\/1130sandbox\/part\/measures-of-variance\/","title":{"raw":"Confidence Intervals","rendered":"Confidence Intervals"},"content":{"raw":"In this part, we will build confidence intervals to estimate a range in which a population parameter is likely to lie (with a level of certainty specified by what is called the 'confidence level').\r\n\r\nWe will examine three possible cases of estimation:\r\n<ol>\r\n \t<li>A true mean where the population standard deviation (\u03c3) is known<\/li>\r\n \t<li>A true mean where the population standard deviation (\u03c3) is unknown<\/li>\r\n \t<li>A true proportion or percentage for a population<\/li>\r\n<\/ol>\r\nWe will also calculate the standard error (width of the interval on either side of the mean) as well as the sample size required when a maximum standard error size is specified\/required.","rendered":"<p>In this part, we will build confidence intervals to estimate a range in which a population parameter is likely to lie (with a level of certainty specified by what is called the &#8216;confidence level&#8217;).<\/p>\n<p>We will examine three possible cases of estimation:<\/p>\n<ol>\n<li>A true mean where the population standard deviation (\u03c3) is known<\/li>\n<li>A true mean where the population standard deviation (\u03c3) is unknown<\/li>\n<li>A true proportion or percentage for a population<\/li>\n<\/ol>\n<p>We will also calculate the standard error (width of the interval on either side of the mean) as well as the sample size required when a maximum standard error size is specified\/required.<\/p>\n","protected":false},"parent":0,"menu_order":11,"template":"","meta":{"pb_part_invisible":false,"pb_part_invisible_string":""},"contributor":[],"license":[],"class_list":["post-487","part","type-part","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/pressbooks.bccampus.ca\/1130sandbox\/wp-json\/pressbooks\/v2\/parts\/487","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.bccampus.ca\/1130sandbox\/wp-json\/pressbooks\/v2\/parts"}],"about":[{"href":"https:\/\/pressbooks.bccampus.ca\/1130sandbox\/wp-json\/wp\/v2\/types\/part"}],"version-history":[{"count":4,"href":"https:\/\/pressbooks.bccampus.ca\/1130sandbox\/wp-json\/pressbooks\/v2\/parts\/487\/revisions"}],"predecessor-version":[{"id":2459,"href":"https:\/\/pressbooks.bccampus.ca\/1130sandbox\/wp-json\/pressbooks\/v2\/parts\/487\/revisions\/2459"}],"wp:attachment":[{"href":"https:\/\/pressbooks.bccampus.ca\/1130sandbox\/wp-json\/wp\/v2\/media?parent=487"}],"wp:term":[{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/1130sandbox\/wp-json\/wp\/v2\/contributor?post=487"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/1130sandbox\/wp-json\/wp\/v2\/license?post=487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}