{"id":51071,"date":"2021-09-14T00:39:40","date_gmt":"2021-09-14T00:39:40","guid":{"rendered":"https:\/\/papersspot.com\/blog\/2021\/09\/14\/need-help-with-a-business-question\/"},"modified":"2021-09-14T00:39:40","modified_gmt":"2021-09-14T00:39:40","slug":"need-help-with-a-business-question","status":"publish","type":"post","link":"https:\/\/papersspot.com\/blog\/2021\/09\/14\/need-help-with-a-business-question\/","title":{"rendered":"Need help with a business question"},"content":{"rendered":"<p>Week 5 Assignment <br \/> 1.Explain why it is important to calculate a confidence interval. <br \/> 2.Explain the meaning of the term \u201c95% confidence.\u201d <br \/> 3.For a fixed level of confidence, what happens to a confidence interval for \u00b5 when we increase the sample size? <br \/> 4.Suppose that for a sample size of n=100, we find that the sample mean is 50. Assuming that the standard deviation = 2, calculate the confidence intervals for the population mean \u00b5 with the following confidence levels. <br \/> a.90% <br \/> b.92% <br \/> c.95% <br \/> d.97% <br \/> e.99% <br \/> 5.Explain how the standard deviation of the t curve changes as the number of degrees of freedom describing a t curve increases. <br \/> For a fixed sample size, what happens to a confidence interval for \u03bc when we increase the level of confidence? <br \/> It gets? <br \/> Item 4 <br \/> In each of the following cases, compute 95 percent, 98 percent, and 99 percent confidence intervals for the population proportion p. <br \/> (a)p\u02c6p^ = .1 and n = 113 (Round your answers to 3 decimal places.) <br \/> (b)p\u02c6p^ = .5 and n = 256. (Round your answers to 3 decimal places.) <br \/> (c)p\u02c6p^ = .8 and n = 116. (Round your answers to 3 decimal places.) <\/p>\n<p> (d) p\u02c6p^ = .2 and n = 53. (Round your answers to 3 decimal places.) <\/p>\n<p> In each of the following cases, determine whether the sample size n is large enough to use the large sample formula to compute a confidence interval for p. <br \/> (a) p\u02c6p^= .1, n = 30 <br \/> n(p-hat) = <br \/> n(1-(p-hat) = <\/p>\n<p> (b) p\u02c6p^= .1, n = 100 <br \/> n(p-hat) = <br \/> n(1-(p-hat) = <\/p>\n<p> (c) p\u02c6p^= .5, n = 50 <br \/> n(p-hat) = <br \/> n(1-(p-hat) = <br \/> (d) p\u02c6p^= .8, n = 400 <br \/> n(p-hat) = <br \/> n(1-(p-hat) = <br \/> (e) p\u02c6p^= .9, n = 30 <br \/> n(p-hat) = <br \/> n(1-(p-hat) = <br \/> (f) p\u02c6p^= .99, n = 200 <br \/> n(p-hat) = <br \/> n(1-(p-hat) = <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Week 5 Assignment 1.Explain why it is important to calculate a confidence interval. 2.Explain the meaning of the term \u201c95% confidence.\u201d 3.For a fixed level of confidence, what happens to a confidence interval for \u00b5 when we increase the sample size? 4.Suppose that for a sample size of n=100, we find that the sample mean [&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":[10],"class_list":["post-51071","post","type-post","status-publish","format-standard","hentry","category-research-paper-writing","tag-writing"],"_links":{"self":[{"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/posts\/51071","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=51071"}],"version-history":[{"count":0,"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/posts\/51071\/revisions"}],"wp:attachment":[{"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/media?parent=51071"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/categories?post=51071"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/papersspot.com\/blog\/wp-json\/wp\/v2\/tags?post=51071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}