4. The mean number of posts a person \"likes\" on Facebook per month is 311.11, with a standard deviation of 72.42. The number of posts \"liked\" on Facebook per month can only take integer values, so the distribution of \"likes given\" is not Normal. (a) (4 points) What is the mean and standard deviation of the number of Facebook posts \"liked\" in a whole year?<\/p>
(b) (6 points) You sample a person's Facebook profile activity for every month for the last 5 years. What are the chances that the average number of posts \"liked\" per month in your sample is larger than 307? (c) (5 points) Suppose you don't know the mean number of Facebook posts \"liked\", but still know the standard deviation is 72.42. You would like to calculate a 90% confidence interval for the mean number of posts \"liked\" per month. What is the smallest number of months you will have to sample if you'd like your confidence interval to have a margin of error no larger than 27?<\/p>
(d) (2 points) Are you sure?<\/p>", "transcribed_text": "", "related_book": { "title": "Principles of Accounting", "isbn": "978-1133603054, 113362698X, 9781285607047, 113360305X, 978-1133626985", "edition": "12th edition", "authors": "Belverd E. Needles, Marian Powers and Susan V. Crosson", "cover_image": "https:\/\/dsd5zvtm8ll6.cloudfront.net\/si.question.images\/book_images\/285.jpg", "uri": "\/textbooks\/principles-of-accounting-12th-edition-285", "see_more_uri": "" }, "free_related_book": { "isbn": "1855756552", "uri": "\/textbooks\/the-murder-in-merger-a-systems-psychodynamic-exploration-of-a-corporate-merger-1st-edition-978-1855756557-148352", "name": "The Murder In Merger A Systems Psychodynamic Exploration Of A Corporate Merger", "edition": "1st Edition" }, "question_posted": "2024-05-27 04:01:27", "see_more_questions_link": "\/study-help\/questions\/sciences-biology-2023-February-20", "step_by_step_answer": "The Answer is in the image, click to view ...", "students_also_viewed": [ { "url": "\/study-help\/introduction-to-programming\/write-a-method-remove-that-takes-a-linkedlist-node-and-1279222", "description": "Write a method remove() that takes a linked-list Node and a string key as its arguments and removes every node in the list whose item field is equal to key.", "stars": 3 }, { "url": "\/stock-has-had-returns-of-34-percent-18-percent", "description": "A stock has had returns of 34 percent, 18 percent, 29 percent, -6 percent, 16 percent, and -48 percent over the last six years. What are the arithmetic and geometric returns for the stock?", "stars": 3 }, { "url": "\/study-help\/hotel-operations-management\/recall-a-bad-service-experience-that-you-recently-had-what-1871468", "description": "Recall a bad service experience that you recently had. What led to the service failure? Consider such dimensions as tangibles, reliability, responsiveness, assurance, or empathy.", "stars": 3 }, { "url": "\/study-help\/introduction-to-probability-statistics\/suppose-that-a-b-and-c-are-completely-independent-events-1981828", "description": "Suppose that A, B, and C are (completely) independent events. Show that each of the following pairs consists of independent events: (i) {A, B C}; (ii) {A, B C}.", "stars": 3 }, { "url": "\/dina-richards-opens-a-highend-stationery-store-stationery-plus-on", "description": "Dina Richards opens a high-end stationery store, Stationery Plus, on November 1, 2008. She finances the store by investing $80,000 in cash in exchange for all the common stock of the firm. She also...", "stars": 3 }, { "url": "\/study-help\/questions\/can-anyone-match-these-terms-match-the-concepts-based-9902293", "description": "can anyone match these terms ? Match the concepts based on the material in the chapter a step-by-step process which is guaranteed t produace a specific result a process which tries every possiblk...", "stars": 3 }, { "url": "\/study-help\/questions\/suppose-the-swiss-franc-revalued-from-usd09838chf-at-the-beginning-986866", "description": "Suppose the Swiss franc revalued from USD0.9838\/CHF at the beginning of 2016 to USD1.0279\/CHF at then end of 2016.By what percent has the U.S. dollar appreciated or depreciated relative to the Swiss...", "stars": 3 }, { "url": "\/study-help\/questions\/1-precision-engineering-inc-pei-is-a-small-manufacturer-of-4486522", "description": "1. Precision Engineering Inc. (PEI) is a small manufacturer of precision tools used to construct research equipment for engineering departments at colleges and universities. It sells its two main...", "stars": 3 }, { "url": "\/study-help\/questions\/which-of-the-following-is-most-closely-aligned-with-the-4859248", "description": "Which of the following is most closely aligned with the concept of psychological safety? 1 point Leader is responsible for making the employee comfortable at all times. Leader ignores bad behavior in...", "stars": 3 }, { "url": "\/study-help\/questions\/continue-mini-case-1-the-accounting-cycle-part-1-the-5603523", "description": "Continue Mini Case 1 (the Accounting Cycle Part 1), the following information is available for FastForward in September that may need adjustments.[1] By the end of September, FastForward has provided...", "stars": 3 }, { "url": "\/study-help\/questions\/question-1-a-nurses-aide-alleged-that-on-august-22-4884529", "description": "question 1 A nurse's aide alleged that on August 22, 2012, she was attacked while cleaning a resident's room by a male coworker who attempted to rape her. She was able to escape and reported the...", "stars": 3 }, { "url": "\/study-help\/questions\/karris-manager-suspects-that-the-batteries-being-produced-lately-dont-5328998", "description": "Karri's manager suspects that the batteries being produced lately don't have enough voltage. the null hypothesis at 5% For a left-tailed test, the critical value of z so that a hypothesis test would...", "stars": 3 }, { "url": "\/study-help\/questions\/question-content-area-top-part-1-marian-plunket-owns-her-8376423", "description": "Question content area top Part 1 Marian Plunket owns her own business and is considering an investment. If she undertakes the investment, it will pay $5,440 at the end of each of the next 3 years....", "stars": 3 }, { "url": "\/study-help\/questions\/foles-corporations-beginning-inventory-for-the-year-was-52500-purchases-during-the-168953", "description": "B made an issue of 150,000 $1 ordinary shares at a premium of 20% the proceeds of which is received by cheque. What is the correct journal to record this? A. Bank Share capital Share premium B. Bank...", "stars": 3 }, { "url": "\/study-help\/public-organizations\/can-you-describe-some-examples-of-how-external-power-and-1672490", "description": "Can you describe some examples of how external power and politics influence internal power and politics? LO.1", "stars": 3 }, { "url": "\/study-help\/public-organizations\/a-behavioral-theory-of-the-firm-btf-cyert-march-1672484", "description": "A Behavioral Theory of the Firm (BTF; Cyert & March, 1963) is one of the most significant management books of all time. Why is this the case? Explain and describe a specific influence the theory has...", "stars": 3 }, { "url": "\/study-help\/public-organizations\/how-would-you-describe-the-roles-of-goal-alignment-information-1672483", "description": "How would you describe the roles of goal alignment, information verifiability, and the distribution of risk in inter-organizational relationships? Make sure to include the main scholars, both seminal...", "stars": 3 } ], "next_back_navigation": { "previous": "\/study-help\/questions\/-1776319", "next": "\/study-help\/questions\/-1776321" }, "breadcrumbs": [ { "name": "Study help", "link": "https:\/\/www.solutioninn.com\/study-help\/questions-and-answers" }, { "name": "Sciences", "link": "https:\/\/www.solutioninn.com\/study-help\/questions-and-answers\/sciences" }, { "name": "Mathematics", "link": "https:\/\/www.solutioninn.com\/study-help\/questions\/sciences-mathematics" }, { "name": "4. The mean number of posts a person likes on Facebook per", "link": "https:\/\/www.solutioninn.com\/study-help\/questions\/-1776320" } ], "skill_details": { "skill_id": "342", "skill_name": "Mathematics", "parent_id": "5" } }" } }