Type I and type II errors

p-values and what can be concluded from them (Cohen, 1994). Cohen also shows that the NHST is close to worthless. NHST is a way to show how unlikely a result would be if the null hypothesis were true. A Type I error is where the researcher incorrectly rejects a true null hypothesis and a Type II error is where the researcher incorrectly accepts the false null

1. Describe each of the three levels of Analytics (Descriptive, Predictive, and Prescriptive). Give a brief example of how they might be used to solve business decisions. Descriptive: Descriptive Analytics, probably the most common type of analytics, is the process of describing and evaluating the historical data and recognizing patterns from samples. It serves as a foundation for more advanced analytics. An example of Descriptive Analytics would be discovering and reporting trends. Predictive:

Does Clothing Have an Impact on Social Interactions: An Observational Study in the Classroom      There are many reasons why we choose to wear a particular article or style of clothing. Many of us consider our choice in clothing as an extension of our identity. While many others pick items from their wardrobe that reflect their current mood. There are also many times when we choose to dress a certain way in anticipation of being in a particular social setting. Even people

(2000). What Alpha Level? In I. Price, Inferential Statistics (p. Chapter 5). New England: University of New England. University of Texas-Houston Health Science Center . (2013). Hypothesis Testing . Retrieved March 21, 2013, from Biostatistics for the Clinician : http://www.uth.tmc

Statistics for Business Intelligence – Hypothesis Testing Index: 1. What is Hypothesis testing in Business Intelligence terms? 2. Define - “Statistical Hypothesis Testing” – “Inferences in Business” – and “Predictive Analysis” 3. Importance of Hypothesis Testing in Business with Examples 4. Statistical Methods to perform Hypothesis Testing in Business Intelligence 5. Identify Statistical variables required to compute Hypothesis testing. a. Correlate computing those

intervention (Vaillant et al., 2009). In the second session, the treatments were reversed, with at least 1 week between sessions (Vaillant et al., 2010). Statistical significance was established by p ≤ 0.05 and CI of 95%, which decreased the risk of a Type I error and improved precision, respectively (Jewell, 2015). Between-group comparison analyses indicated a single session of massage and mobilization resulted in significant improvements in OLB and TUG tests, but not in the LR test (Vaillant et al., 2009)

Week Seven Homework Exercise Answer the following questions, covering material from Ch. 13 of Methods in Behavioral Research Define inferential statistics and how researchers use inferential statistics to draw conclusions from sample data. According to Cozby (2009) inferential statistics are used to determine whether we can in fact make statements that the results reflect what would happen if we were to conduct the experiment again and again with multiple samples Define probability and discuss how

Statistics is defined as a branch of mathematics used to analyze, explain summarize as well as interpret what we observe- in order to make sense or meaning of our observations. Every day in life we encounter information that originates from diverse forms and ways. This means that to make this information to have sense, there is the need to use statistics. However, due to its focus and empirical on applications, statistics is classically considered a distinctive mathematical science rather than a

DATE: June 12, 2012 TO: Mr. Plex, Owner, Royal 16 Theater FROM: Team 8 RE: Analysis of Liability for Fraud Based off of your request, we have completed an analysis concerning Royal 16 Theater’s liability for fraud assumed by the customer, Tommy. Please contact us if any additional information is needed. July at the Multiplex Executive Summary What are the standards of selling a service or product so the customer will not get furious? If we tried out best but they are still unsatisfied, what

Given the statement of the problem, the conceptual rationale was appropriate for the study. Method Researchers use particular methodologies to guide the study, collect samples, determine a study population, and describe interventions. The method of a research study should include protection of participants’ rights, research design, population and sample, data collection and measurement, and procedures. Researchers should state how they protect human subjects’ rights when they collect data. Research