Answer in Statistics and Probability for Kudzie #232913

The average dividend yield of a random sample of 25 JSE-listed companies this year was found

to be 14.5%, with a sample standard deviation of 3.4%. Assume that dividend yields are

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Answer in Statistics and Probability for Kudzie #232913
Just from $13/Page normally distributed. 3.1.1 Calculate, with 90% confidence, the actual mean dividend yield of all JSE-listed companies this year. Interpret the finding. (6) 3.1.2 Calculate, with 95% confidence, the actual mean dividend yield of all JSE-listed companies this year. Compare the interval with the one calculated in 3.1.1. (12) 3.2 Norman is a student at a college in Durban. The amount of time, in minutes, that Norman walks to the college for his final examinations is constantly distributed between 15 to 40 minutes, inclusive. Use this information to answer the following questions. 3.2.1 Name the continuous probability distribution described above. Explain in detail why it is called the distribution of little information. (3 3.1.1 We are given that the sample mean = 0.145 and the sample standard deviation, s = 0.034 for sample size n=25 The Z value corresponding to 90% CI = 1.645 The 90% CI = mean ± Z*s/“\sqrt{\smash[b]{n}}” The lower bound = 0.145 – 1.645*0.034/“\sqrt{\smash[b]{25}}” = 0.1338 The upper bound = 0.145 + 1.645*0.034/“\sqrt{\smash[b]{25}}” = 0.1562 The 90% CI = (0.1338, 0.1562) This means that we are 90% confident that the actual mean dividend yield of all JSE-listed companies this year will be contained in the interval from 13.38% to 15.62% 3.1.2 We are given that the sample mean = 0.145 and the sample standard deviation, s = 0.034 for sample size n=25 The Z value corresponding to 95% CI = 1.96 The 95% CI = mean ± Z*s/“\sqrt{\smash[b]{n}}” The lower bound = 0.145 – 1.96* 0.034/“\sqrt{\smash[b]{25}}” = 0.1317 The upper bound = 0.145 + 1.96*0.034/“\sqrt{\smash[b]{25}}” = 0.1583 The 95% CI = (0.1317, 0.1583) This means that we are 95% confident that the actual mean dividend yield of all JSE-listed companies this year will be contained in the interval from 13.17% to 15.83% We find that the 95% confidence level has a wider interval than the 90% confidence interval. This may imply that the more the confidence level, the wider the interval. 3.2.1 This is the uniform distribution since the probability is constant between 15 and 40 minutes. 3.2.2 = P(20<x<38) probability = (38-28)/(40-15) = 10/25 = 0.4 What Will You Get? We provide professional writing services to help you score straight A’s by submitting custom written assignments that mirror your guidelines. Premium Quality Get result-oriented writing and never worry about grades anymore. We follow the highest quality standards to make sure that you get perfect assignments. Experienced Writers Our writers have experience in dealing with papers of every educational level. You can surely rely on the expertise of our qualified professionals. On-Time Delivery Your deadline is our threshold for success and we take it very seriously. We make sure you receive your papers before your predefined time. 24/7 Customer Support Someone from our customer support team is always here to respond to your questions. So, hit us up if you have got any ambiguity or concern. Complete Confidentiality Sit back and relax while we help you out with writing your papers. We have an ultimate policy for keeping your personal and order-related details a secret. Authentic Sources We assure you that your document will be thoroughly checked for plagiarism and grammatical errors as we use highly authentic and licit sources. Moneyback Guarantee Still reluctant about placing an order? Our 100% Moneyback Guarantee backs you up on rare occasions where you aren’t satisfied with the writing. Order Tracking You don’t have to wait for an update for hours; you can track the progress of your order any time you want. We share the status after each step. Areas of Expertise Although you can leverage our expertise for any writing task, we have a knack for creating flawless papers for the following document types. Trusted Partner of 9650+ Students for Writing From brainstorming your paper's outline to perfecting its grammar, we perform every step carefully to make your paper worthy of A grade. Preferred Writer Hire your preferred writer anytime. Simply specify if you want your preferred expert to write your paper and we’ll make that happen. Grammar Check Report Get an elaborate and authentic grammar check report with your work to have the grammar goodness sealed in your document. One Page Summary You can purchase this feature if you want our writers to sum up your paper in the form of a concise and well-articulated summary. Plagiarism Report You don’t have to worry about plagiarism anymore. Get a plagiarism report to certify the uniqueness of your work. Free Features$66FREE

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