After reading How to Lie with Statistics, please respond to at least two of the below prompts. Your response should be one or two paragraphs in length. What new information did you learn? What existing knowledge was confirmed? What new questions are you pondering? How might this information be useful in this course or in other areas? https://towardsdatascience.com/lessons-from-how-to...
After viewing the Best Practices of Presentation video and the Sample Data Analytics Presentation, please provide a list of at least three things you believe this presentation does well and at least three ways in which it could be improved. Then, please indicate how you will use this information to guide the preparation of your final presentation (due next week). As a reminder, here is the final assignment
Imagine that you are on the finance team at a new airline, Blue Skies Airways. Use the Airline Financials Dataset to create a visualization and executive summary (approximately 300-500 words in length) to convey any information you believe to be important to your colleagues. Note: The Airline Glossary.https://docs.google.com/document/d/1vRNXAW2prWwrXM... will be helpful as you complete this assignment. Please use Excel, Tableau, or both of these platforms for this assignment.approximately 300-500 words in length
Conditional Probability: What affect does a condition have on the probability? Let's compare and find out. Example: Let's look at a standard deck of 52 playing cards. No replacement: What is the probability of getting 2 kings assuming that the first one is not replaced? (Note: There are 4 kings in a deck of cards. And a deck of cards has 52 cards.) Answer: 4/52 * 3/51 = 1/13*1/17= 1/221 Replacement: What is the probability of getting 2 kings assuming that the first one is replaced? Answer: 4/52 * 4/52 = 1/13 * 1/13 = 1/169 What difference does it make? Which gives the higher probability? Initial Post: Make up a similar example to the above problem using (a) with replacement and (b) without replacement. You may use playing cards, or a similar scenario, however be sure that you can represent both with and without replacement. Flipping a coin 10 times is not appropriate because it only represents the "without replacement" condition. Do not solve your own problem - that will be done by your classmates. Two Response Posts: You will solve both problem posed by two of your classmates. First copy the problem, then show your work explaining how you worked each problem. Once you have solved the problems compare the results. Which situation is more likely? Does replacement make a significant difference? Do NOT use the numbers in this example post in your post. Please make sure all posts are unique and use different numbers. It is important to go back and read follow up responses from your instructor. Initial post due: Thursday 11:59 pm ET. Reply posts due: Sunday 11:59 PM ET Rubric for grading discussions: Quick View of Discussion Grading Rubric (Please see full details for explanation of criteria below) Criteria Max Score Main Discussion Post Accuracy 20 Analysis and Explanation 30 Writing Standards 10 Classmate Responses (Requires two or more) Response 1 Response in a Substantive Manner 20 Response 2 Response in a Substantive Manner 20 Total 100 Please sign ALL your Discussion posts with the name that you like to be called - it makes it so much easier for the rest of us to address you by your preferred name when we respond. Rubrics
Specifically, the following critical elements must be addressed: Main Elements Integration and Application Analysis Critical Thinking What to Submit Your analysis of the scenario must be submitted as a 1- to 2-page Microsoft Word document with double spacing and 12-point Times New Roman font. The owner of a small printing company is considering the purchase of additional printing equipment to expand her business. If the owner expands the business and sales are high, projected profits (minus the cost of the equipment) should be $90,000; if sales are low, projected profits should be $40,000. If the equipment is not purchased, projected profits should be $70,000 if sales are high and $50,000 if sales are low. Are there options other than the purchase of additional equipment that should be considered in making the decision to expand the business? If the owner is optimistic about the company's future sales, should the company expand by purchasing the equipment? Is the owner's optimism or pessimism about sales the only factor that may impact the company's profits? The equipment to be purchased is known in the industry to have a useful life of five years. How might this impact the printing company?
The purpose of this quiz is to test your knowledge of correlation, the first of a group of statistical measures of association. Research Scenario: A walk-in medical clinic seeks to investigate whether a relationship exists between the number of hours their patients report exercising each week and systolic blood pressure. For one month they ask the triage team to ask this question of all walk-in patients prior to taking their vital signs. At the end of the month the collected data are analyzed for all triaged patients. The Correlation Quiz is published and the access code is rfq24 The Correlation Quiz data and research question is: Correlation Quiz Data Question Is there a significant relationship between hours spent exercising and systolic blood pressure?
Practice Exam: Due in 5-12hrs It is a simple statistics quiz about descriptive statistics. The exam will consist of multiple questions and calculations. The duration of the exam practice is 1 hr.
The professor teaching a large introductory class gives a final exam that has alternate forms, A, B, and C. A student taking the exam using Form B is upset because she claims that Form B is much harder than Forms A and C. Discuss how percentile point data might be useful to determine if the student is correct.
Is there a difference between the average number touchdowns between conferences in the National Football League? Use the 2023 NFL Season Stats data to test whether there is a significant difference between average total season Touchdowns among teams of the AFC and NFC. Use variables total_TD and Conference. Data attached below Create a summary table and side-by-side boxplot. Create a table with the mean, standard deviation and sample size of each group. Save your table to copy into your analysis. Create a side by side boxplot. Include a title and axis labels. Save as an image to upload into your post. Conduct a hypothesis test and calculate a 90% confidence interval Use your option's question of interest to state the null and alternative hypotheses. Using your sampled information calculate the test statistic and obtain a p-value. You can use excel or pen and paper. Using your sampled information calculate the confidence interval. You can use excel or pen and paper. Save and show your work for your post. Ways to show your work: Use the math formula button in Canvas. Take a screenshot of your excel workbook. Only the work part not the entire screen. Take a screenshot of handwritten work on a tablet. Neatly hand-write your formulas on paper take a picture with your phone and upload the image within your post. Image needs to .jpeg. (please no words/sentences) EXPLAIN YOUR ANALYSIS AND SUBMIT YOUR ORIGINAL POST USE THE "ORIGINAL POST - OUTLINE & PROMPTS" TO CREATE YOUR ORIGINAL POST Use the title "Week 6 Data Analysis" Use the same headers as listed below (e.g., "State and Visualize") in your post. Answer each question/prompt in the bulleted list below each heading in your post. For the math related questions, please show your work or excel functions you used to find your answers. State and Visualize Which option did you choose? State the question of interest. Provide summary statistics and graphical display of your sampled data. Plan State the null and alternative hypotheses to answer the question of interest. Describe whether it is (or is not) fair to assume the sample is an unbiased representation of the population of interest. Justify whether the sample sizes for each group are large enough to meet the conditions. Solve Calculate the test statistic. Show work. What is the p-value? Is it one or two sided? Calculate a 90% confidence interval. Show work. Conclude Write a four-part conclusion describing the results. Provide a statement in terms of the alternative hypothesis. State whether (or not) to reject the null (use alpha of 0.10) Give an interpretation of the point and interval estimate. Be sure to include a direction to your estimate like which mean is bigger/smaller than the other. Include context and practical insights or plausible implications from the results of the data.
Complete the following exercises "Review Questions" located at the end of each chapter and put them into a Word document Chapter 1, number 1.8 Chapter 2, number 2.14 Chapter 3, numbers 3.10 and 3.17 Chapter 4, numbers 4.17 and 4.19 Show all relevant work.
