there are approximately 126‚000 abortions conducted each day throughout the world. This website includes the abortion statistics of the world and breaks the data down to the demographics of the United States. It also discusses the decisions to have an abortion and the use of contraceptives in the United States. This was an informative website and included detailed statistics conducted by the Alan Guttmacher Institute. According to the website http://www.bls.gov/cps in 2000‚ gon average there
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08 ETHE AUSTRALIAN NATIONAL UNIVERSITY SCHOOL OF FINANCE AND APPLIED STATISTICS First Semester Examination 2010 QUANTITATIVE RESEARCH METHODS (STAT1008) Writing Period: 3 hours duration Study Period: 15 minutes duration Permitted Material: Non-programmable calculator‚ dictionary and 1 A4 page with notes on both sides Instructions to Candidates: • Attempt ALL questions. • Each question is of equal mark value. • Start your solution to each question on a new page. • To ensure full marks
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Problems on Regression and Correlation Prepared by: Dr. Elias Dabeet Q1. Dr. Green (a pediatrician) wanted to test if there is a correlation between the number of meals consumed by a child per day (X) and the child weight (Y). Included you will find a table containing the information on 5 of the children. Use the table to answer the following: Child Number of meals consumed per day (X) child weight (Y) X² Y² XY Ahmad 11 8 121 64 88 Ali 16 11 256 121 176 Osama 12 9 144
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Chapter 12 Simple Linear Regression Case Problem 1: Measuring Stock Market Risk a. Selected descriptive statistics follow: Variable N Mean StDev Minimum Median Maximum Microsoft 36 0.00503 0.04537 -0.08201 0.00400 0.08883 Exxon Mobil 36 0.01664 0.05534 -0.11646 0.01279 0.23217 Caterpillar 36 0.03010 0.06860 -0.10060 0.04080 0.21850 Johnson & Johnson 36 0.00530 0.03487 -0.05917 -0.00148 0.10334
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phenomena of crime what about rape‚ homicide etc. that would be adding more variables to the set so that you can measure all different types of crime and get the actual rate of crime. 2. Differentiate between descriptive statistics and inferential statistics. a. Descriptive statistics summarizes and describe the data on cases included in the study. You are only describing what’s going on with the data from the case at hand. For example‚ you interviewed 100 people about which fast food restaurant had
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SECTION A (You should attempt all 10 questions) A1. Regression analysis is ____________________________________. A) describes the strength of this linear relationship. B) describes the mathematical relationship between two variables. C) describes the pattern of the data. D) describes the characteristic of independent variable. A2. __________________ is used to illustrate any relationship between two variables. A) Histogram B) Pie chart C) Scatter diagram D) Frequency
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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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Examine the disadvantages some sociologists may find when using official statistics in their research Official statistics are a secondary method of gaining data which are highly supported by Positivists but not so much by Interpretivists for a variety of reasons. The usages of official statistics come with many disadvantages as well as advantages. One reason Positivists support the use of official statistics is that they allow quantitative data to be gathered. However‚ Interpretivists‚ such
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Statistics mean ‘a group of number that represents fact or describe a situation’ (Macmillan English Dictionary‚ 2007). ‘Statistics’ is the word which seems far away from our daily life‚ but actually we see or listen about statistics every day‚ such as the oil price news‚ the economic news‚ etc. Many statistical studies have been done by many institutions. Before publishing the statistic results the researchers have to collect the data‚ after that analyse the collected data then‚ interpret results
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I would like to talk about statistics. The word “statistics” is using in at least four different sense. First of all‚ it can indicate a whole subject or discipline. Secondly ‚ the term may use the methods to collect quantitative data. Thirdly ‚ the collection of data‚ gathered by those methods‚ can apply the term. And the last one ‚ it is an average. Statistics is when we observe people‚ things and events in the world around us. We notice their similarities and differences ‚ their pluses and
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