As a culmination of your learning experience in this course, I would like you to reflect on what you learned, how you learned, and what you will be able to do with statistics in your future. As you reflect, try to think about big ideas and NOT just the formulas and calculations you learned. As a reminder, here is some of my goals for our work … Read more
Data screening is fundamental before any analysis. The basics of data screening are outlined in your Warner text. Data screening is used for two major purposes: removing bad cases (missing responses or nonresponse patterns) and testing the assumptions (distribution of quantitative variables, sample size requirements for analysis, removal of small groups) of the intended analysis. … Read more
Assignment Content You told a friend about the work you have been doing to better understand desirability of professional development in your organization. Your friend thinks the idea would be very helpful in her organization. After you showed her the presentation (linked below), she decided to conduct a similar investigation at her organization. To save … Read more
Please respond to the following: Debate if failing to reject the null is the same as accepting the null. Support your position with examples of acceptance or rejection of the null. Be sure to respond to at least one of your classmates posts. Reply Quote
QUIZ 1 Exercise 1 In the attached employee data, 1. Graph the bar chart for sex, pie chart for sex and histogram for age. 2. Compute the mean and median for age. Exercise 2 1. A manufacturer of inkjet printers claim that only 5% of their printers require repairs within the first year. If … Read more
Overview For this assignment, your instructor will assign a linear programming project based on the following specifications: It will be a problem with at least three constraints and at least two decision variables. The problem will be bounded and feasible. It will also have a single optimum solution (in other words, it wont have … Read more
1. For the following data find the linear trend (the equation). Then improve the trend by first taking 3 yearly and then 5 yearly moving averages (Specify R2 values for the 3 scenarios). Also predict the revenue for the year 2015 considering the random fluctuations using both additive and multiplicative model. 2+2+2+(2+2) = 10 … Read more
The data in the table are from a study conducted by an insurance company to determine the effect of changing the process by which insurance claims are approved. The goal was to improve policyholder satisfaction by expediting the process and eliminating some extraneous approval steps. The response measured was the average time required to approve and … Read more
The Central Limit Theorem can be demonstrated by taking sample mean distributions from a population that is not normally distributed. Graph the probability distribution for rolling a six-sided die as a relative frequency histogram. Determine the mean and standard deviation for this distribution. Construct a relative frequency distribution for a sample mean distribution with sample … Read more
100 points (10 points for each question) Suppose the following are the ages of a group of individuals enrolled in a study looking at the relationship between sleep apnea and Alzheimers disease. 6, 8, 4, 3, 7, 12, 9, 4, 7, 1 Find the following: A) Mode and Mean B) Median C) Variance D) Standard … Read more