Car Bus Train Other Eastern Suburbs 81 161 148 39 Inner West & South 69 209 247 53 North Shore 75 148 165 64 2. Assume that a 1% level of significance is to be used for the test. 3. 1. Calculate the test statistic‚ reporting your answer correct to three decimal places.Blank 1 4. Use the tables to determine
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Chapter 4 Microscopes Two important factors in microscopy are: 1) Magnification: an increase in the object’s apparent size compared with its actual size. 2) Resolving Power: the ability of an optical instrument to show two objects are separate. Three types of microscopes: 1) Light Microscope (LM) M: 1000x RP 0‚2 micrometer (small bacterial cell) 2) Electron Microscope (EM) uses a beam of electrons to resolve electrons‚ better resolving powers than light microscope M:100‚000x RP 0
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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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Problems and Solutions 4 Disneyland chapters 6 & 7 1. Bad breakfast organisation problem: Solution: To increase number of employers in restaurants and to open more restaurants which serves breakfast. To organise more coffee mashines or coffee stands. Sell cheaper food like hot dogs‚ sandwiches... ( For example‚ Disney had thought that Europeans wouldn’t like to have a big breakfast in the morning. This misjudgement led to hungry and unhappy crowds in the mornings while most of the restaurants
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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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Major Statistics Assignment Mary Grace Rivero 050853639 CNUR860-011 Vaska Micevski Friday‚ March 30‚ 2012 Major Statistics Assignment This major statistics assignment will finally pull together everything that was learned in this course. The application of all content within this course will be incorporated to three different research scenarios. Within each scenario‚ hypothesis testing will be done‚ followed by a discussion of relevant descriptive statistics and finally‚ a discussion
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Sample Exam Solutions Problem 1 (Hypothesis testing) A company that manufactures travel goods is particularly concerned that the mean weight of the roll-on cabin bags should not exceed 3 kg as many airlines limit the weight of carry-on luggage on their planes to 7 kg. Past experience allows the assumption that the std. dev = 0.03 kg. A sample of 50 cabin bags is selected and the sample mean is 3.009 kg. Using a 0.05 significance‚ conduct a hypothesis test to determine if the population mean weight
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between $30.00 and $40.00 4. 99% of households spent less than what amount? z- score for 99% area is 2.3263 x = mu + z * sigma = 45.16 + 2.3263 * 10 = 99% of households spent less than $68.42 NORMINV (.99‚ 45.16) References Levine‚ D.‚ Stephan‚ D.‚ Krehbiel‚ T.‚ & Berenson‚ M. (2008) Statistics for managers using Microsoft Excel w/cd. (5th ed.). Upper Saddle River‚
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Master of Business Administration – MBA Semester I Subject code – MB0040 Subject Name – Statistics For Management Assignment Set – 1 Q.1. Why it is necessary to summarise date? Explain the approaches available to summarize the data distributions? Q.2. Explain the purpose of tabular presentation of statistical data. Draft a form of tabulation t show the distribution of population according to i) Community by age‚ ii) Literacy‚ iii) Sex‚ and iv) Marital status. Q.3. Give a brief note of the
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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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