Summary Statistics T-test One-way ANOVA Contents Introduction 3 Introductory information 3 Summary Statistics 3 Basic Definitions 3 T-test 5 Independent samples t test 5 SPSS Steps 5 One-way ANOVA 6 SPSS Steps 6 Introduction This document focuses specifically on Block/Week 1. The following topics will be covered: Introductory information Summary Statistics T-test One-way ANOVA Introductory information Required readings: IBM SPSS Statistics 23 Manuals: Brief Guide1 Refer to “IBM Statistics Base 22
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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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American University in the Emirates General Statistics ASC 205 Assignment 1 Due Date: 19th July‚ 2013 Assignment 1 (Chapter 1) Name: …………………………………………………………………………… ID: …………………………………………………………………………………. Answer all the following questions below (15 Points ): A. Choose the correct answer: 1) Hair color of women on a high school tennis team A) Nominal B) Interval C) Ordinal D) Ratio 2) The number of seats in a movie theater A) Qualitative
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site. Sekaran‚ U. (2003). Research methods for business: A skill-building approach (4th ed.). New York‚ NY: John Wiley & Sons. Doane‚ D. P.‚ & Seward‚ L. E. (2007). Applied statistics in business and economics. Boston‚ MA: McGraw-Hill/Irwin. Instructor’s Name: Prof. Yolanda García Lugo UOPhx E-mail Address: (787) 529-6225 Alternative E-mal Address: ygarcialugo29@yahoo.com
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Chapter 8: Hypothesis Testing: 8.1 Review and Preview: The two main activities of inferential statistics are using sample data to (1) estimate a population parameter (such as estimating a population parameter with a confidence interval)‚ and (2) test a hypothesis or claim about a population parameter. Hypothesis: a claim or statement about a property of a population Hypothesis test/test of significance: a procedure for testing a claim about a property of a population Population proportion
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1. Following the explosion of the 25th space shuttle flight‚ which was caused by an O-ring failure in one or more of the booster rockets‚ data from the previous 24 flights were studied. The Temperature (F) at the time of launch and whether or not there was evidence of O-ring failures for each of the previous 24 shuttle flights was determined for each flight. A logistic regression relating the Failure of O-rings to the Temperature was obtained with the following result: Estimate Std. Error z value Intercept
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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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Importance of Statistics in Different Fields Statistics plays a vital role in every fields of human activity. Statistics has important role in determining the existing position of per capita income‚ unemployment‚ population growth rate‚ housing‚ schooling medical facilities etc…in a country. Now statistics holds a central position in almost every field like Industry‚ Commerce‚ Trade‚ Physics‚ Chemistry‚ Economics‚ Mathematics‚ Biology‚ Botany‚ Psychology‚ Astronomy etc…‚ so application of statistics is very
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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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T-test A t-test is a hypothesis test in which the test statistic follows a Student’s t-distribution under the null hypothesis. There are several different test statistics that fall into the category of a t-test. One-Sample t-test x 0 s n df n 1 t Independent Two-Sample t-test t x1 x2 2 sx1x2 n 1 2 2 sx1 sx2 2 df 2n 2 sx1x2 Unequal Sample Size Two-Sample t-test t x1 x2 1 1 sx1x2 n1 n2 sx1x2 n1 1 sx2 n2
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