Mathematics – Statistics

Simulation Challenge 2 comes in two flavors: Sign Test (maximum of 50 points) or Wilcoxon Signed Rank test (maximum of 60 points).  You can do one or the other (NOT both). If you submit both, I will grade the WSR

Overview In public health, data are often gathered from separate groups in order to describe health-related behavior for a topic of interest. In practice, a larger sample is often surveyed, and then focus groups or interviews can be conducted with

1. Customers can replace 1, 2, 3, or 4 tires at a time for their vehicle at Tire Nation, a nationwide tire shop chain. For customers who have had their tires replaced at Tire Nation, the mean number of tires replaced is =3.67,

Project  In this project you will gather data, analyze it using MS Excel, and write your conclusions. The project takes several weeks to complete. The steps are as follows: 1. Gather Data 2. Excel Spreadsheet 3. Introduction 4. Data analysis

  Competencies In this project, you will demonstrate your mastery of the following competencies: Apply statistical techniques to address research problems Perform regression analysis to address an authentic problem Overview The purpose of this project is to have you complete

Look for problems in the data and be prepared to explain why they are problems. Engage in a Discussion with your colleagues and work together to repair the data set by addressing all of the errors. Note that the data

 Must format answer in attached template. Must use attachments for data. Must use previous attached assignment for reference. Overview The purpose of this project is to have you complete all of the steps of a real-world linear regression research project

1. Briefly state the general research question that motivates the study.   HINT: You must state an interrogative sentence to receive credit. 2. What type of experiment laboratory or field did Sherman et al. (1992) conduct?  Discuss the experimental procedure.  HINT:

1. State the main independent variable?  How was it manipulated?    HINT: Recall, manipulation operations are designed to change the value a variable (Dixon et al. 2019, p. 114-115) and review Sherman et al. (1992), p. 146-147 2. What is the main dependent variable?

Tables 2 and 3 show output from the regressions needed to use the GoldfeldQuandt test of heteroskedasticity. Table 2 shows the results from the early subsample, and Table 3 shows the results from the later subsample. Use the information in