{"id":51971,"date":"2021-09-20T02:22:13","date_gmt":"2021-09-20T02:22:13","guid":{"rendered":"https:\/\/papersspot.com\/blog\/2021\/09\/20\/5-statistic-question\/"},"modified":"2021-09-20T02:22:13","modified_gmt":"2021-09-20T02:22:13","slug":"5-statistic-question","status":"publish","type":"post","link":"https:\/\/papersspot.com\/blog\/2021\/09\/20\/5-statistic-question\/","title":{"rendered":"5 statistic question"},"content":{"rendered":"<p>1.What is the probability that the score on a normally distributed variable is in each of the following areas? <br \/>a.Between the mean and z=.45 <br \/>b.Between the mean and z= -1.80 <br \/>c.Beyond (less than) z= -.95 <br \/>2.Recall from lecture that the number of hours people sleep is a normally distributed variable. The mean is 7.5 hours and the standard deviation is 1.25 hours. <br \/>a.What proportion of people sleep between 7 and 9 hours a night? <br \/>b. What proportion of people sleep more than 6 hours a night? <br \/>3.What is a sampling distribution? <br \/>4.InaPsy 320class (N=50) the number of close friendspeople reported havinghad a mean of 4.76, and a standard deviation of 4.77. <br \/>a.What is the standard error of the mean, as calculated from the sample? <br \/>b.Place a 95% confidence interval around the mean. <br \/>c.Interpret what this confidence interval tells us. <br \/>d.What are two ways to decreasethe size of a confidence interval? Why would we want to do this? <br \/>5. If the population mean number of friends was 4.10, and standard deviation 2.46, what is the likelihood that thesamplemeanof 4.76(or higher) would be obtained from this population? <\/p>\n","protected":false},"excerpt":{"rendered":"<p>1.What is the probability that the score on a normally distributed variable is in each of the following areas? a.Between the mean and z=.45 b.Between the mean and z= -1.80 c.Beyond (less than) z= -.95 2.Recall from lecture that the number of hours people sleep is a normally distributed variable. The mean is 7.5 hours [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[31],"class_list":["post-51971","post","type-post","status-publish","format-standard","hentry","category-research-paper-writing","tag-statistics"],"_links":{"self":[{"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/posts\/51971","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/comments?post=51971"}],"version-history":[{"count":0,"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/posts\/51971\/revisions"}],"wp:attachment":[{"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/media?parent=51971"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/categories?post=51971"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/tags?post=51971"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}