Complex Statistics Problems with Elaborate Answers : Page - 6

Introduction The study of epidemiology is a cumulative discipline, so while the emphasis for Exam 2 is on the material since the first Exam, you are still expected to know about earlier concepts that are built upon such as rates, etc.   Epidemiology Calculations/Measures of AssociationOdds Ratios and their Variance (covered in biostats)Matched Odds RatiosRelative Risks and their Variance (covered in biostats)Confidence Intervals ...

Question 1Question 1An education psychologist believed that part-time students are more motivated than full-time students in their study. As such, he devised an instrument to assess a person's motivation level. The result of the test ranged from 0 to 800 points. The higher the point means the person is more motivated. This instrument was used on 46 full-time and 51 part-time students. The dataset can be found in the TOA Data File ‘Question...

The Dow Jones Industrial AverageThe monthly closing values of the Dow Jones Industrial Average (DJIA) for the period beginning in January 1950 are given in the Excel _le tab named Dow. According to Wikipedia, the Dow Jones Industrial Average, also referred to as the Industrial Average, the Dow Jones, the Dow 30, or simply the Dow, is one of several stock market indices created by Charles Dow. The average is named after Dow and one of his busines...

Utilize quantitative forecasting methods with time series dataUtilize quantitative forecasting methods with time series data Prompt: This week is dedicated to Time-Series Forecasting techniques. Start in the Lessons section of the classroom by completing the reading and viewing assignments. Don't even think about trying to complete this homework assignment without understanding the concepts involved in Forecasting Time-Series data. Once you ha...

Question 1Question 1    For this question, you will need the file, “HBC203_TMA01_Q1.csv”. This file contains a subset of the Singapore data from the 2012 World Values Survey, after non-responses have been deleted. There are three variables in the file:Sex, where 1 = male, 2 = femaleAgeHappiness, where 1 = Very happy, 2 = Rather happy, 3 = Not very happy, 4 = Not at all happya. Impor...

TaskThis test is open-book, open-note, open-Excel, and open-internet but you are NOT allowed to consult with fellow students or any other people about either the problems or the answers. For each problem, show at minimum:1) The null and alternative hypotheses, written using proper notation 2) The test statistic calculation showing: the letter of the test statistic (t or z), the formula for the test statistic, the numbers filled into th...

Question 1: Forecasting Gold PricesQuestion 1 The daily prices of Gold over time.a) Examine the plot and describe the issues that may arise when trying to forecast future Gold prices given this time series data. Offer solutions to these issues.b) Offer a suitable forecasting method for this data. Question 2For each of the below ACF plots which are obtained for a time series data of 4 different variables of interest:a) Explain the ACF p...

In this activity you will use the CrackerBarrel.txt data file and StatCrunch to illustrate your understanding of a variety of concepts. You will likely find this activity more challenging than the MyLab homework for several reasons.  First off, you are working with an actual data set.  You will need to spend a bit of time familiarizing yourself with the variables included in the set.  Often students rely ...

Loan Interest CalculationsYou are borrowing $350,000 to buy a condo and will be making payments at the end of each month. For an annual interest rate ranging from 1 percent through 10 percent and loan durations of 10, 15, 20, 25, and 30 years, determine the total interest paid on the loan.  You are thinking of opening a café that will have six four-person tables. Each day that the restaurant is open, there are two lunch sessions/peri...

Scenario 1: Obesity among City ResidentsInstructions: Download this pdf and complete it as you have been doing with the Explorations. The completed pdf must be uploaded by 8 am (central time) on Saturday, 18 Sep. The submission link will close at that time. All exams must be submitted through the Canvas submission link. Any exam submitted via email or Canvas messenger will be deleted. The Canvas submission link will allow you to submit more than...

Demonstrating Competencies in Social Media AnalyticsThis assessment is designed to demonstrate a student’s completion of the following : 1.Demonstrate an understanding of concepts underlying social media analytics and be able to apply them appropriately in business settings; 2.Critically evaluate and implement specialist technologies to harvest, analyse and visualise “social data” from individuals to corporate perspectives;...

Proportion of Males and Females Involved in Bullying1. What is the proportion of males who bullied others?  What is the proportion of females who bullied others?  Which gender (male or female) possessed a deeper involvement in bullying others? 2. What is the correlation between friends who bully individuals and the number of times the respondent bullied others?  Is this correlation coefficient significant? How do you know? &nbs...

Univariate analyses of component and independent variablesInstructions You will be using the data file hw5.sav to examine variation in respondents’ satisfaction with four areas of their lives (family, friends, finance, and job). You will then create a summary measure of overall satisfaction, and will explore how (and whether) that summary measure varies in two ways: across educational levels and with frequency of sexual activity. Finally, ...

Steps to calculate confidence intervalsIn this assignment, you will calculate confidence intervals for the quantitative variables in the Heart Rate Dataset.Steps1.Open the Heart Rate Dataset in Excel and identify the quantitative variables2.Make sure the data is sorted by category (e.g.male-at-rest, female at-rest, etc.)3.Use the Data Analysis tools of Excel to construct 95% and 99% confidence intervals for all 8 categories of the sorted quant...

Task 1: Ungrouped Descriptive StatisticsTask 1: Ungrouped Descriptive Statistics To gain some insights into the typical price consumers are willing to pay for a stand mixer, a retailer of kitchen appliances randomly selected 130 relevant invoices for transactions completed in October2020. Descriptive statistics, computed to summarise the data, are presented in Table 1 below. . This table has been made available in the Excel file named “...