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Question 1: Probability sampling designs You are a researcher at Nova Bank that has 100 branches across Canada, with a total of 100,000 clients and 2,000 employees. The bank president shows you the CIBC Poll: Am I saving enough to retire? (http://cibc.mediaroom.com/2018-02-08-Am-I-saving-enough-to-retire-Vast-majority-of-Canadians-just-dont-know-CIBC-poll) in which “an online survey was conducted among 1,523 randomly selected Canadian adult...
Choosing the Dependent VariableThe goal of this culminating statistics project is to identify the factors that might have some influence on a chosen topic/variable. You will be collecting and analysing data for three different variables using a secondary source. There will be one dependent variable and two independent variables for which data will be needed. For example, what are the factors that affect climate change? If climate change was your...
Chapter 4: Productivity of Meter ButlersTask: Read the chapter, review the PowerPoint slide, then answer the following questions and solve these respective problems that are located at the end of chapters 4, 5 and 6. Show all calculations and given a detailed answer to all questions in response to the statistical findings for each problem solved:4.2 Allan Wiese, the mayor of Orva, South Dakota, feels that the productivity of meter butlers has d...
Problem 1: Confidence Interval for a Sample Mean1)A simple random sample of 60 items resulted in a sample mean of 80. The population standard deviation is σ = 15. a.What is the 95% confidence interval for the population mean? b.Assume that the sample size was 120, rather than 60. Recalculate the 95% confidence interval for the population mean. c.What does the increased sample size due to the confidence interval? 2)A simple random sam...
Market SurveyYou are the marketing manager for Acme Dog Nutrition, an organic, gluten-free food for active dogs. You believe that not all dog owners are the same. You seek to identify groups among dog owners, with the objective of finding the group(s) who will appreciate the extra care and quality found in every kernel of Acme Dog Nutrition. To that end, you conduct a market survey using a 7-point Likert scale, asking each respondent to ...
Question 1 The questions to be answered are; Data showing the population by state in millions of people follow (The World Almanac, 2012). The dataset in Excel file 2012Population.xlsx. a. Develop a frequency distribution, a percent frequency distribution, and a histogram. Use a class width of 2.5 million. b. Does there appear to be any skewness in the distribution? Explain. c. What observations can you make about the population of the ...
Introduction to Poisson RegressionThere were 46 crude oil spills of at least 1000 barrels from tankers in U.S. waters during 1974–1999. The website for this book contains the following data: the number of spills in the ith year, Ni; the estimated amount of oil shipped through US waters as part of US import/export operations in the ith year, adjusted for spillage in international or foreign waters, bi1; and the amount of oil shipped throu...
Target Population IdentificationGoal: Create a memo-style paper addressed to a key decision-maker that uses simple linear (OLS) regression analysis to support recommendation to take or not take a course of action. 1)Setup a memo header with To, From, Date, and Re or Subject line Your “To:” You are writing to a key decision-maker at Perine and Associates Consulting Group. Pretend that your analysis memo will be used ...
Poverty and EducationThe National Health and Nutrition Examination Survey (NHANES) is a yearly survey conducted by the US Centers for Disease Control. This question uses the nhanes.samp.adult.500 dataset in the oibiostat package, which consists of information on a subset of 500 individuals ages 21 years and older from the larger NHANES dataset Poverty (Poverty) is measured as a ratio of family income to poverty guidelines. Smaller numbers ind...
Assessing model fit using diagnostic plots for all speciesAs part of a study, researchers examined the relationship between claw size (propodus height in mm) and its closing force (in Newtons) for three intertidal crab species: Hemigrapsus nudus (HN), Lophopanopeus bellus (LB), and Cancer productus (CP). The raw data can be seen in Display 7.15 (p. 201). The following code will load the data, group it into four different subsets: ALL (all thre...
Create Master League Tables1. Download the following data from the Website onto an excel file for the years 2017, 2018 and 2019:a. Top Assistsb. Top Scorersc. Disciplined. League TablesName these data files suitably as input worksheets 2. Create a Cleaned up Master League Table for Each Year for 2017, 2018 and 2019. (Hint: The master league table should look like the following)a. Use the LEFT & MID Functions to split the Team Name from ...
Example 1: Maximizing Profit with Graphical Method1. Find the feasible region and optimum solution for this linear programming model, using the graphical method. What is the maximum profit?Maximize Z = 6.5x1 + 10x2Subject to:2x1 + 4x2 ≤ 40x1 + x2 ≤ 15x1 ≥ 8 x1, x2 ≥ 02. Find the feasible region and optimum solution for this linear programming model, using the graphical method. What is the minimum cost?Minimize Z = 8x1 + 6x2Subject to...
Part 1: Financial Tools and FunctionsMidwest Copper Linda Rubin is a project analyst at Midwest Copper, a mining company in northern Minnesota. The company is considering investing in a copper mine near Spirit River. Linda wants you to help develop a financial workbook that analyzes the cost of opening the mine, running it for 25 years, and then cleaning up the mine site after its useful life is over. Complete the following. 1. Go to the Pr...
Objectives1.You will conduct a one-sample t-test for Writing for the null hypothesis in the population H0: μ = 50, with α = .05, two tailed. Answer the following questions (report to two decimal places) a.Obtain the t-statistic, by hand computation. b.Obtain the critical value from the t table. c. Obtain the 95% confidence interval around , by hand computation. d. Interpret the confidence interval, according to i...
Assessing the Distribution of Three VariablesIn this assignment, you will characterize three variables in the ISLR College data set to determine whether the normal approximation is appropriate for that variable. You will need to load the ISLR package as well as MASS and stats. 1.Assess the distribution of the three variables (Accept, Grad.Rate, and PhD) and determine if the normal approximation is appropriate for their analysis. a.Plot a his...
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