{"id":32751,"date":"2022-02-14T07:31:32","date_gmt":"2022-02-14T07:31:32","guid":{"rendered":"https:\/\/assignmenttutors.net\/blog\/a-coffee-manufacturer-is-interested-in-whether-the-mean-daily\/"},"modified":"2022-02-14T07:31:32","modified_gmt":"2022-02-14T07:31:32","slug":"a-coffee-manufacturer-is-interested-in-whether-the-mean-daily","status":"publish","type":"post","link":"https:\/\/assignmenttutors.net\/blog\/a-coffee-manufacturer-is-interested-in-whether-the-mean-daily\/","title":{"rendered":"a coffee manufacturer is interested in whether the mean daily"},"content":{"rendered":"<div>\n<p><span>\u00a0A coffee manufacturer is interested in whether the mean daily consumption of regular-coffee drinkers is less than that of decaffeinated-coffee drinkers. Assume the population standard deviation for those drinking regular coffee is 1.29 cups per day and 1.44 cups per day for those drinking decaffeinated coffee. A random sample of 55 regular-coffee drinkers showed a mean of 4.41 cups per day. A sample of 47 decaffeinated-coffee drinkers showed a mean of 5.16 cups per day.<\/span><\/p>\n<p><span>Use the .02 significance level.<\/span><\/p>\n<ol>\n<li><strong><span>The decision rule is to reject H0 : \u03bcr \u2265 \u03bcd if z &lt; ______________\u00a0(Negative value should be indicated by a minus sign. Round your answer to 2 decimal places.)<\/span><\/strong><\/li>\n<li><strong><span>The test statistic is z =\u00a0<\/span><span>______________<\/span><span>\u00a0(Negative value should be indicated by a minus sign. Round your answer to 2 decimal places.<\/span><\/strong><\/li>\n<li><strong><span>What is the P-value\u00a0<\/span><span>______________<\/span><span>( round to four decimal places) \u00a0.<\/span><\/strong><\/li>\n<\/ol>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0A coffee manufacturer is interested in whether the mean daily consumption of regular-coffee drinkers is less than that of decaffeinated-coffee drinkers. Assume the population standard deviation for those drinking regular coffee is 1.29 cups per day and 1.44 cups per day for those drinking decaffeinated coffee. A random sample of 55 regular-coffee drinkers showed a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-32751","post","type-post","status-publish","format-standard","hentry","category-education"],"_links":{"self":[{"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/posts\/32751","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/comments?post=32751"}],"version-history":[{"count":0,"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/posts\/32751\/revisions"}],"wp:attachment":[{"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/media?parent=32751"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/categories?post=32751"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/tags?post=32751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}