Statistics Essay

3604 words - 15 pages

Question catalogue: Statistics Self-Study Module
Master's programme Media and Communication Science
If you are master student of the master programme “Media and Communication Science” and have to fulfill the additional requirement: Self-Study Module Statistics, you have to answer these list of 42 questions. Please answer the following questions concerning statistical methods in social science briefly. Helpful information concerning the questions can be found in the Reader: “Statistics”. Enjoy yourself while answering the questions. Chapter 1 1. A client rates her satisfaction with her vocational counselor on a 4-point scale from 1 = not at all satisfied to 4 = very satisfied. What is the ...view middle of the document...

1

Question catalogue: Statistics Self-Study Module
Master's programme Media and Communication Science
5. Describe the shapes of the three distributions illustrated below.

Chapter 2 6. (a) Describe and explain the differences between the mean, median, and mode. (b) Make up an example (not in the book or in your lectures) in which the median would be the preferred measure of central tendency. 7. (a) Describe the variance and standard deviation. (b) Explain why the standard deviation is more often used as a descriptive statistic. 8. Find the (a) mean, (b) median, (c) sum of squared deviations, (d) variance, and (e) standard deviation. In the following list of numbers: 3.0; 3.4; 2.6; 3.3; 3.5; 3.2; A developmental psychologist studies the number of words seven infants have learned at a particular age. The numbers are: 10, 12, 8, 0, 3, 40, and 18. Figure the (a) mean, (b) median, and (c) standard deviation for the number of words learned by these seven infants. (d) Explain what you have done and what the results mean to a person who has never had a course in statistics.

9.

10. A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative ability. For the verbal activity test, the mean for people in general is 50 and the standard deviation is 20. For the quantitative ability test, the mean for people in general is 0 and the standard deviation is 5. Which is the person’s stronger ability: verbal or quantitative? Explain your answers to a person who has never had a course in statistics.

2

Question catalogue: Statistics Self-Study Module
Master's programme Media and Communication Science
Chapter 3

11. For each of the following scatter diagrams, indicate whether the pattern is linear, curvilinear, or no correlation; if it is linear, indicate whether it is possible or negative and approximately how strong the correlation is.

12.

As part of a larger study, Speed and Gangestad (1997) collected ratings and nominations on a number of characteristics for 66 fraternity men from their fellow fraternity members. The following paragraph is taken from their “Results” section: “…men’s romantic popularity significantly correlated with several characteristics: best dressed ( r = .47), most self-confident (r = . 48), best trendsetters (r = .38), funniest (r = 37), most satisfied (r = .32), and most independent (r = .28). Unexpectedly, however, men’s potential for financial success did not significantly correlate with romantic popularity (r = .10). (p. 931)” Explain these results as if you were writing to a person who has never had a course in statistics. Specifically, (a) explain what is meant by a correlation coefficient using one of the correlations as an example; (b) explain in a general way what is meant by “significantly” and “not significantly”, referring to at least one specific example; and (c) speculate on the meaning of the pattern of results, taking into account the issue of direction of causality.

13....

Other Papers Like Statistics

Statistics Essay

3466 words - 14 pages descriptive statistics. Students will learn to apply business research and descriptive statistics in making better business decisions. Other topics include examination of the role of statistics in research, statistical terminology, the appropriate use of statistical techniques, and interpretation of statistical findings in business and research. Policies Faculty and students will be held responsible for understanding and adhering to all

Statistics Essay

1134 words - 5 pages 1) The main purpose of descriptive statistics is to A. summarize data in a useful and informative manner B. make inferences about a population C. determine if the data adequately represents the population D. gather or collect data 2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called A. statistics B. descriptive statistics C. inferential statistics D. levels of measurement 3) The

Statistics

2264 words - 10 pages distributed normally. The Histogram below as well as the Descriptive Statistics (Appendix 1, Table 1b) show that the data distribution is leptokurtic (kurtosis is 2,021) and negatively skewed (skewness -,240). We can determine several outliers (Appendix 1, Table 1c, Table 1d) with extreme ratios. In cases #46 and #178 JSL is more than the highest option provided in the questionnaire. That could be a mistake in data entering or the respondent wanted

Statistics - 1168 words

1168 words - 5 pages 3 ( HA: μ< 3 ) Challenges the status quo Never contains the “=”, “≤” or “≥” sign May or may not be accepted Is generally the hypothesis that is believed (or needs to be supported) by the researcher –a research hypothesis. • Test Statistics: Sample used to determine whether a hypothesis will be accepted or rejected. If

Statistics - 1105 words

1105 words - 5 pages relied on the collection of data to make decisions that propel the human race into the next era of technical development and business growth. The type of data varies as it can either be quantified or qualitative to meet the needs and purpose of the research. The age old question has always been which of the two is the most preferred methodology, but the real question should be how both mirror the theme of statistics to provide the closest range to

Statistics - 666 words

666 words - 3 pages 10/24/2011 Introduction The Sample Mean The Central Limit Theorem The Sample Variance Sampling Distribution from The Normal Distribution Sampling from A Finite Population ◦ Distribution of The Sample Mean ◦ Joint Distribution of X and S2 ◦ Approximate Distribution of The Sample Mean ◦ How Large A Sample Is Needed 2 1 10/24/2011 Recall definitions of: ◦ ◦ ◦ ◦ ◦ ◦ ◦ Population Sample Inferential statistics Sampling Random

Statistics - 1921 words

1921 words - 8 pages one has tertiary or professional qualifications) P(A)=8C1*12C2/20C3+8C2*12C1/20C3+ 8C3*12C0/20C3 =8*66/1140+28*12/1140+56/1140 =0.807 3. Explain in detail the following key statistical concepts. Where possible illustrate your explanation with a graph or drawing. a) Descriptive Statistics Descriptive statistics means basic features of the raw data. A set of descriptive is used to describe the concerned samples. Arithmetic mean

Statistics - 1894 words

1894 words - 8 pages BUSINESS STATISTICS ASSIGNMENT Project Title: Employee retention at D&Y consulting firm Section E: Group 2:Anshul Garg (11FN-015)-Finance Gokul Sudhakaran(11DM-039)-Marketing Kaviya .A. (11DM-057)- Marketing Nikhil Gagrani(11DM-089)- Marketing Sheth Dharmil Nirupam(11DM-147)-Marketing Taru(11IB-061)-International Business Submission Date:- 9th September,2011

Statistics - 1794 words

1794 words - 8 pages adolescents’ reported incidence of being victims or perpetrators or traditional and electronic bullying. a. Using this table as an example, explain the idea of a frequency table to a person who has never had a course in statistics. Frequency is how many times something has happened and of all of the possible results that can occur, and each result's respective chance of happening. So the frequency of the table would be how many times the

Statistics - 1778 words

1778 words - 8 pages ) c) Copy and paste your regression result below. SUMMARY OUTPUT | | | | | | | | | | | | | | | | | Regression Statistics | | | | | | | | Multiple R | 0,66669338 | | | | | | | | R Square | 0,444480063 | | | | | | | | Adjusted R Square | 0,428141241 | | | | | | | | Standard Error | 0,050770391 | | | | | | | | Observations | 36

Statistics - 2018 words

2018 words - 9 pages Statistics Name Institution Question 1 of 20 | 5.0 Points | When comparing two population means with an unknown standard deviation you use a t test and you use N-2 degrees of freedom.  A. True |  B. False | | Reset Selection Question 2 of 20 | 5.0 Points | Pretend you want to determine whether the mean weekly sales of soup are the same when the soup is the featured item and when it is a normal item on the menu. When it is the

Related Essays

Statistics Essay 578 Words

578 words - 3 pages This paper will explain what statistics are. Statistics are used in so many ways, including business. This paper will thoroughly defining statistics, the types and levels of statistics, the role of statistics in a business and examples of how statistics may be used. The most common definition for statistics would be the collection of numerical data. Examples of numerical data could be the percentage of how many African-Americans passed

Statistics Essay 593 Words

593 words - 3 pages In a world ridden with endless problems and possibilities, it is statistics that is relied upon to find solutions to the problems and help determine what possibilities are truly feasible. Statistics may be best defined as the means by which data is gathered, analyzed, and interpreted to better understand a problem or situation. There are two types of data that can be analyzed in statistics. These are quantitative and qualitative data

Statistics Essay 2717 Words

2717 words - 11 pages Descriptive and Inferential Statistics ________________________________________ Statistics can be broken into two basic types. The first is known as descriptive statistics. This is a set of methods to describe data that we have collected. Ex. Of 350 randomly selected people in the town of Luserna, Italy, 280 people had the last name Nicolussi. An example of descriptive statistics is the following statement : "80% of these people have the

Statistics Essay 1100 Words

1100 words - 5 pages , observe and interpret information regarding this population. The purpose of this paper is to determine which methods of statistics are used as a measuring tool and what levels of measurements are used or could be used to improve the decision-making process for this organization. Statistics in the Workplace Many areas of the hospital facility use statistics in measurement. How do statistics affect this hospital healthcare facility in women