Q-1 STATISTICS PLAYS A VITTAL ROLE IN ALMOST EVERY FACET OF HUMAN LIFE.DECRIBE THE FUNCTIONS OF STATISTIC.EXPLAIN THE APPLICATION OF STATISTICS. ANS- MEANING OF STATISTICS- ACCORDING TO SELIGMAN “STATISTIC IS A SCIENCE WHICH DEALS WITH THE METHOD OF COLLECTING‚ CLASSIFYING‚ PRESENTING‚ COMPARING & INTERPRETING THE NUMERICAL DATA TO THROW LIGHT ON ENQUIRY.” ACCORDING TO CROXTON & COWDEN- “STATISTICS IS THE SCIENCE OF COLLECTION‚ PRESENTATION‚ ANALYSIS & INTERPRETATION OF NUMERICAL DATA FROM LOGICAL
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APPAREL AND FOOTWEAR IN CHINA Euromonitor International May 2014 APPAREL AND FOOTW EAR IN CHINA LIST OF CONTENTS AND TABLES Executive Summary ..................................................................................................................... 1 Economic Slowdown Negatively Impacts Apparel and Footwear Sales ................................... 1 Sportswear Industry Posts Sluggish Retail Value Growth in 2013 ............................................ 1 International
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Assessing T-tests To clearly identify what a t-test accomplishes in descriptive statistics it is imperative to understand what a t-test represents. A “t-test is a parametric statistical test for comparing the means of two independent samples” (Plichta & Kelvin‚ 2013‚ p. 464). Gosset developed the t-test for use in quality control at the Guinness Brewery and published his works under the pen name “Student” (Plichta & Kelvin‚ 2013). T-tests use assumptions related to the underlying
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1 1. Statistics is the science of collecting‚ organizing‚ analyzing‚ interpreting‚ and presenting data. TRUE 2. Inferential statistics refers to generalizing from a sample to a population‚ estimating unknown parameters‚ drawing conclusions‚ and making decisions. TRUE 3. Descriptive statistics refers to summarizing data rather than generalizing about the population. FALSE 4. Estimating parameters and testing hypotheses are important aspects of descriptive statistics. FALSE
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Question 1 a. Mean age = 960/20=48 b. Standard Deviation = 10.74832 Web address: http://easycalculation.com/statistics/standard-deviation.php Frequency distribution table for denomination. Score f(frequency) 1 1 2 2 4 2 5 1 6 3 7 3 8 1 9 3 10 3 12 1 N=30 c. What is the percentage of people who identify themselves as Baptist? 3/20 = .15 x 100 = 15% What is the mode of church attendance? 5 Question
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Test the appropriate ... Wednesday‚ May 11‚ 2011 at 2:18am by Erica Applied Statistics Assignment Guidelines Perform a two-tailed hypothesis test using the steps outlined in the assignment description. In a Word document‚ create a report that includest the following: Null and alternate statements. Pasted Microsoft Excel data output. Identification of the ... Sunday‚ October 23‚ 2011 at 6:05pm by Truth Statistics Null hypothesis: Ho: p = .80 -->meaning: population proportion is equal
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Name Assignment QNT/561 Date Descriptive Statistics Sales (in USD) The distribution is normally distributed. Central Tendency: Mean = 42.84 dollars. Dispersion: Standard deviation = 9.073 dollars. Count: 100 Min/Max: Min is $23.00; Max is $64.00 Confidence Interval (alpha = 0.05): $41.06 to $44.62 The histogram is present in Appendix A; the descriptive statistics are present in Appendix B. Age The distribution is not normally distributed. Central Tendency: Median = 35 years Dispersion:
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Which five statistics surprised you the most and/or caused you to be most concerned and ? 1. 16 percent of children and teens aged 6 to 19 were overweight in 1999-2002‚ triple the proportion in 1980. Fifteen-percent of children in the same age group are considered at-risk for overweight. The percentage of overweight African American‚ Hispanic‚ and Native American children is about 20%. 2. Only 25 percent of students in grades 9 through 12 engaged in moderate physical activity for at least 30
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plagiarism (copying) or any other attempt to gain an academic advantage in a dishonest or unfair manner. Breaches of the Academic Honesty Policy will result in dismissal from HCT Project Objectives: To estimate the population parameters from sample statistics‚ using interval estimate (90%‚ 95% and 99% levels). The project consists of three parts as listed below. You should carefully read the instructions. This project is Group based (2 – 3) and each Group will have different results based on the initial
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The statistics that can signify discrimination within an organization’s recruitment‚ hiring or promotionary practices are primarily applicant flow statistics and applicant stock statistics. These primary statistics were introduced as a way of determining whether staffing practices were having potentially illegal impacts on individuals because of race‚ sex‚ and many of the other protected class characteristics. Typically‚ statistical differentiations employed to establish cases of discrimination
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