Mathematics

Polling agencies claim to provide accurate readings of the pulse of America. They give the public a percentage of the population who are likely to vote for a particular candidate, or a company the probability that their customers may purchase their product. Polling organizations sample the population and use a proportion to predict the results during an election or the likelihood a customer will buy. Choose a polling organization and look up a current sampling situation. Discuss the poll, sample size, point-estimate, margin of error, and inferences. Explain the importance of this data and what you find interesting about the results.  Be sure to provide a reference to your poll.

Written Homework: Percentages and Big Numbers Instructions: save this file. Add your solutions to each problem after each question. SHOW ALL WORK on each problem! 1. Write the following numbers in standard, decimal notation using all zeros and commas placed appropriately. Also state how people would commonly would say this number verbally. (a) 4,500.78 million (b) 0.0024 trillion (c) 67,800 million 2. Suppose your calculator or computer gives you the final answer as listed below. Write each value in standard, decimal form using all zeros, and all commas placed appropriately. (a) 2.907 E 6 (b) 3. Find each answer. (a) 14.8% of 4300 is what value? (b) 306 is what percent of 730? (c) 300 is what percent less than 520? (d) 520 is what percent more than 300? (e) 1.85% more than 65 billion is what number? (f) 24.1% less than 85 trillion is what number? 4. There are 2000 people working in a building. 1300 of the people are full time workers (600 full time are male, and 700 full time are female). 700 of the people are part time workers (450 part time are male, and 250 part time are female). (a) Part time female workers make up what percent of the company total people in the building? Show your work. (b) Part time female workers make up what percent of the total part time workers? (c) If part time female workers increase by 50 people (while all other employees remain at the same numbers), then what percent would part time employees in the building increase? (d) If part time female workers increase by 50 people (while all other employees remain at the same numbers), then what percent would all employees in the building increase? (e) If part time female workers increase by 50 people (while all other employees remain at the same numbers), then what percent would female employees in the building increase?

Design a presentation to teach a client the difference between qualitative and quantitative variables.

Directions: The research questions below are used as examples throughout this chapter. Identify the appropriate statistical test for each question by using both decision-making tools from Chapter 2. Example :1  To what degree do undergraduate GPA scores predict graduate GPA? Mertler, C., & Reinhart, R. V. (2016). Regression Do males and females have significantly different incomes? What is the association between test scores and hours studied? To what degree do GRE scores predict graduate GPA? Do three types of counseling significantly affect self-esteem and self-efficacy? What are the causal relationship between life satisfaction, work satisfaction, and self-esteem among mental health clients? Which of the following risk-taking behaviors, amount of alcohol use, drug use, sexual activity, violence,  distinguish between THREE groups of clients:  and suicide attempters who are not successful; suicide attempters who are successful, and those who have not attempted suicide? Does marital status including married, separated and divorced, significantly affect self-self-esteem scores and depression scores after controlling for the effect of age? Does ethnicity significantly affect self-esteem scores and work satisfaction scores controlling for the effect of family income? Which of the following risk-taking behaviors including amount of alcohol use, drug use, sexual activity best predict depression scores among adolescents? Do three groups of mental health clients with low, middle, and high incomes have significantly different life satisfaction scores? Does ethnicity and gender significantly affect self-esteem scores and life satisfaction scores? What underlying factor structure exists among the variables of depression, self-efficacy, self esteem, and work satisfaction? To what extent do certain risk-taking behaviors including amount of alcohol use, drug use and sexual activity, increase the odds ratio for the following GROUPS:  suicide attempters AND NON-suicide attempters. Do ethnicity and gender significantly affect income and job satisfaction controlling for age?

How do you use statistics in your daily life, either at home or in your current or future career? Find and discuss at least two examples of statistics that are used in your career field or in your daily life. Do you feel like statistics are a vital part of your current or future career? What about your daily life? Why or why not?

Present two different types of data, or variables, used in the health field. Examples could be blood pressure, temperature, pH, pain rating scales, pulse oximetry, % hematocrit, minute respiration, gender, age, ethnicity, etc. Classify each of your variables as qualitative or quantitative and explain why they fall into the category that you chose. Also, classify each of the variables as to their level of measurement–nominal, ordinal, interval or ratio–and justify your classifications. Which type of sampling could you use to gather your data? (stratified, cluster, systematic, and convenience sampling)

Description: Students will graph a quadratic equation and draw conclusions based on the graph. Objectives: Graph and evaluate a quadratic function. Instructions: Step 1: Respond to the following: If a manufacturer can produce a certain item for $7 and sell the item for x dollars, the profit per item will be x – 7 dollars. If it is then estimated that consumers will buy 25 – x items per month, the total profit will be: Total Profit = (number of items sold)(profit per item) = (25 – x)(x – 7) Use this information to create a quadratic equation. Then graph your equation, and based on the graph, what value of x will create the greatest profits? What will that profit be? What part of the graph did you use to find this information? Explain how this process could be useful in other scenarios.

Health Care Delivery Models and Nursing Practice Examine changes introduced to reform or restructure the U.S. health care delivery system. In a 1,000-1,250 word paper, discuss action taken for reform and restructuring and the role of the nurse within this

An important distinction is made in between quantitative and qualitative independent variables. Please discuss each of these types of variables, giving examples of each, and please explain why this distinction is so important to the study of multivariate statistics.

For this Critical Thinking assignment, you will analyze survey results using concepts