Hypothesis is a term that is often used in many ways (for example, sometimes it means that you have a feeling that something is true), but it has a precise meaning in statistics. Hypotheses are the likely answers to our testable research questions. Hypotheses are derived from prior knowledge and questions that arise from previously…
Scenario: A city’s administration isn’t driven by the goal of maximizing revenues or profits but instead looks at improving the quality of life of its residents. Many American cities are confronted with high traffic and congestion. Finding parking spaces, whether in the street or a parking lot, can be time consuming and contribute to congestion….
This week explores the many ways that you can describe data, or use descriptive statistics, as the first step in your analyses. Descriptive statistics provide an overview of the basic features of a data set; it may be helpful to think of descriptive statistics as a simple summary of your data. But these simple summaries…
Instructions Download the assignment template and data file from this week’s resources and review the steps for this assignment. Once you have reviewed the steps, complete the problems and questions as presented. Show your work using your statistical program output. You may show manual/hand calculations only if the SPSS program cannot be accessed. There are two…
The Analysis of Variance (ANOVA) method is the most popular and highly used statistical technique by researchers. Like T tests, ANOVAs are used to compare the means of groups for a given independent variable to determine whether they are statistically different from each other. However, T tests can only compare two groups. ANOVAs allow you…
In everyday terms, a confidence interval is the range of values around a sample statistic (such as mean or proportion) within which clinicians can expect to get the same results if they repeat the study protocol or intervention, including measuring the same outcomes the same ways. As you ask yourself, “Will I get the same…
A) Linear Programming is used in all types of organizations in order to solve a wide variety of problems. Understanding the types of problems, and how LP problems can be modeled in Excel, and how optimal solutions can be found using Excel’s Solver add-in, are powerful methods of quantitative analysis. Typically, most of our efforts…
Download the dataset. The data set is information about the tax assessment value assigned to medical office buildings in a city. The following is a list of the variables in the database: Floor Area: square feet of floor space Offices: number of offices in the building Entrances: number of customer entrances Age: age of the…
From the hypothesis, there are some information that can be obtained and used to develop a conclusion. For instance, the hypothesis is about shaving or not shaving preoperative. From this hypothesis, a person will get to know the essence of shaving before surgery. Most people shave few minutes before surgery which can contribute to Surgical…
On a spreadsheet should have 20 “height” values listed below, along with my height of 64 inches as the “x” value. And then remember, you’re going to find the mean and the sample standard deviation. Give us a background. People that you chose maybe come up with an Excel spreadsheet. Where do you have? You…
