types when the results cannot be reliable. According to Bluman (2005)‚ “statistics can be misrepresented in the following ways: Suspect Samples‚ Ambiguous Averages‚ Detached Statistics‚ Implied Connections‚ Misleading Graphs‚ Faulty Survey Questions‚ Asking Biased Questions‚ Using Confusing Words‚ Asking Doubled-Barreled Questions‚ and Using Double Negatives” (p.680-685). The following are example of misuses of statistics. 4. In many ads for weight loss products‚ under the product claims and
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Martin Luther King/Drew Medical Center Accreditation Status The accreditation status of Martin Luther King-Drew Medical Center was threatened by the commission in charge on the assessment on the quality and safety of care at hospitals (Herrera‚ 2004). This was due to the number of times that the said hospital failed to comply with the rules by the commission to improve health care many times after numerous inspections. This status has affected most of the hospital ’s operation and resulted to
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Descriptive Statistics One of the most beloved sports in America is Major League Baseball. This professional sport spends billions of dollars each year enhancing the chances to reach the ultimate goal in winning the World Series. Major League Baseball is one of the few remaining sports that have an uneven balance in the franchise wage capacity to acquire top talented players. The areas of concentration in this research paper will be player salaries‚ winning percentage‚ player performance
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Sample size (n): 300 <-- Input the appropriate number for your situation Sample Mean (X-bar) 124450 <-- Input the appropriate number for your situation Intermediate Calculations -- Standard Error of the Estimate: 1732.0508 Test Statistic (z): 3.0570697 Results -- For the Alpha level given‚ H0 should be Alpha: 0.01 0.05 0.1 One tailed‚ H0: Mu =>119155‚ p= 0.9989 not rejected not rejected not rejected One tailed‚ H0: Mu <=119155‚ p= 0.0011 Rejected Rejected
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Business Data Analysis SCH-MGMT 650 STATISTICS FOR MANAGERS USING Microsoft Excel David M. Levine David F. Stephan Timothy C. Krehbiel Mark L. Berenson Custom Edition for UMASS-Amherst Professor Robert Nakosteen Taken from: Statistics for Managers: Using Microsoft Excel‚ Fifth Edition by David M. Levine‚ David F. Stephan‚ Timothy C. Krehbiel‚ and Mark L. Berenson Cover photo taken by Lauren Labrecque. Taken from: Statistics for Managers: Using Microsoft Excel‚ Fifth Edition
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lose < 10 pound (µ < 10) Test Statistic used is Z test . Given that = 9‚ n= 50‚ = 2.8 Decision rule: Reject the null hypothesis‚ if the p value is less than the significance level 0.05. Details Z Test of Hypothesis for the Mean Data Null Hypothesis = 10 Level of Significance 0.05 Population Standard Deviation 2.8 Sample Size 50 Sample Mean 9 Intermediate Calculations Standard Error of the Mean 0.395979797 Z Test Statistic -2.525381361 Lower-Tail
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Spring 2012 Master of Business Administration- MBA Semester 1 MB0040 – Statistics for Management - 4 Credits (Book ID: B1129) Assignment Set - 1 (60 Marks) Note: Each question carries 10 Marks. Answer all the questions. Q1. What are the functions of Statistics? Distinguish between Primary data and Secondary data. Q2. Draw a histogram for the following distribution: Age No. of people 0-10 10-20 20-30 30-40 40-50 5 10 15 8 2 Q3. Find the median value of the following set
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BUSINESS STATISTICS What is Business Statistics? Statistics in marketing‚ quality control and insurance Statistics is the most widely used quantitative method in business. It is concerned with extracting the best possible information from data in order to aid decision making. It is often applied to sales forecasting‚ quality control and market research. Data used in business include population censuses‚ opinion polls‚ consumer data bases‚ and sales and demand data. The role of the Statistician
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and limitation of using official statistics to investigate social class differences in top comprehensive school. This essay will describe the strength and limitation of using an official statistic to investigate social class difference in top comprehensive school. The general aim of this research is to uncover proportion of working class or poor children with the use of free school meal in top comprehensive school and on GCSE. This research will use Official statistic which are secondary data(it been
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Research Methods in Psychology PSY 540 September 9‚ 2013 Instructor: Research Methods in Psychology Descriptive statistics give us a way to sum up and express our data but do not allow one to make a judgment related to ones theory. When delivering a test of diversity there are two primary techniques of sum up the data using descriptive statistics. The primary direction to measure the central tendency for two conditions (mean‚ median or mode.) The second technique to show date is
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