A study of four students found the following information:
Numbers of Fantasy Books Read (X):
Student 1: 3
Student 2: 1
Student 3: 3
Student 4: 9
Number of Biographies Read (Y):
Student 1: 4
Student 2: 4
Student 3: 8
Student 4: 8
Calculate the mean, median, mode, and standard deviation for each variable.
Calculate the covariance and correlation.
Claire V. Madill
Friday, April 15, 2011
Monday, April 4, 2011
College Admittance
http://thechoice.blogs.nytimes.com/2011/03/30/admit-stats-2011/?scp=1&sq=stats&st=cse
Author: Jacques Steinburg
Publication Title: The Choice
Article Title: Stanford and Duke Accepted How Many? Colleges Report 2011 Admission Figures
Date: March 30, 2011
1. Jacques Steinburg
2. It is undisclosed who sponsored the survey.
3. Yes, I think whoever sponsored this survey wanted to see which colleges were more lenient in their decisions on accepting and also which colleges were harder to get into.
4. This study included the amount of applicants and of those applicants, they showed who was admitted.
5. The results are communicated very well, extremely easy to read and interpret.
6. The graph used in this article is very easy to read. I understood it the first time I looked at it.
Author: Jacques Steinburg
Publication Title: The Choice
Article Title: Stanford and Duke Accepted How Many? Colleges Report 2011 Admission Figures
Date: March 30, 2011
1. Jacques Steinburg
2. It is undisclosed who sponsored the survey.
3. Yes, I think whoever sponsored this survey wanted to see which colleges were more lenient in their decisions on accepting and also which colleges were harder to get into.
4. This study included the amount of applicants and of those applicants, they showed who was admitted.
5. The results are communicated very well, extremely easy to read and interpret.
6. The graph used in this article is very easy to read. I understood it the first time I looked at it.
Friday, April 1, 2011
Jake Olds - Blog Assignment #1
Blog assignment #1
Jake Olds
New York Times
Tweety Was Right: Cats Are a Bird’s No. 1 Enemy
By Elisabeth Rosenthal, March 20, 2011
http://www.nytimes.com/2011/03/21/science/21birds.html?scp=7&sq=study&st=cse
1. The study was done by a few biologists and specialists in The Journal of Ornithology
2. The sponsor of this research is undisclosed
3. This sponsor was interested in finding out how disruptive cats can be to the natural environment, by killing baby gray catbirds.
4. It is not noted. However, it seems that the methodology includes a sample size of a certain number of catbirds’ deaths which were looked into to find the cause of this death. This is a random sample, there is not a control group.
5. These results are clearly communicated. 80% of the birds in the study were killed by predators. 47% of these predators were cats.
6. There are no graphs in this study.
"Education Still Pays"
"College graduates make 75% more then non-college graduates"
1. The Bureau of Labor Statistics conducted the research.
2. The United States of America revenue (from our tax dollars) probably sponsored this research.
3. This research is important to Colleges, Employers, Employees, and possible the IRS.
4. this article conveyed its information concisely and appropriately.
5. It did include graphs, which supplemented the study's findings. they are very helpful, and interesting.
http://economix.blogs.nytimes.com/2011/01/20/education-still-pays/?ref=bureauoflaborstatistics
Exporters' Gain Is Workers' Loss in China's Labor Market
1) This study was done by Standard Chartered PLC
2) It is not explicitly listed who sponsored this research, but presumed Standard Chartered
3) The sponsor of this study would very likely have an interest in the outcome of this study since they are a financial institution that profits from financing trade between Europe, Asia and Africa.
4) 87 manufacturing firms were surveyed during the first quarter, it doesn't say if the sample is random
5) The results are clearly indicated within the text, however not broken down to show the number of firms within each wage percentage increase
6) There are no graphs in this study
Tom Orlik
Heard on the Street: Exporter's Gain Is Workers' Loss in China's Labor Force
Wall Street Journal Online
http://0-proquest.umi.com.ariadne.kzoo.edu:80/pqdweb?index=0&did=2304026751&SrchMode=1&sid=2&Fmt=3&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1301663919&clientId=41099
Dissatisfied Passengers
High income fliers are unhappier with airlines, survey says.
Author: Hugo Martin.
Los Angeles Times
March 28, 2011.
2. The sponsorship information was Undisclosed.
3. Well it depends on who the sponsor is. I am sure the sponsor is a major airline in the United States and there for would want to compare the overall satisfaction of its customers with the overall satisfaction of the market. With this information the sponsor could determine how they are comparing against other market competitors.
4. A sample size of 1,559 people was released, however, no other information was reported about the methodology of the survey.
5. Yeah the results are reported by an outside company and communicated very well.
6. Graphs were not used to display the results concluded in the report presented by the Los Angeles.
"India census: population goes up 1.21bn"
“India census: population goes up 1.21bn”
BBC NEWS
http://www.bbc.co.uk/news/world-south-asia-12916888
Claire V. Madill
1) This article describes 2011 Indian census, which collected information regarding India’s population and classified the population according to gender, religion, education, and occupation. This survey was conducted by 2.7 million Indian census officials from India, who visited 670,000 towns and villages.
2) The sponsor of this research is obviously the government of India. The government of India conducted the survey on which all of the statistics in this article are based upon.
3) The government of India could have been interested in finding an highly optimistic number regarding the total population of India. India is a rising power, and its large population is one reason many believe it will become a main power in the international political and economic system. Overestimating the population makes India seem even stronger and larger and also makes India appear like more of a competitive threat to China.
This article also mentions statistics regarding the gender gap between girls and boys in India. The Indian government might be interested in underestimating the gap or providing evidence that the gap is closing. Such a finding would make it seem like India is advancing in the way of human rights, improving the India’s prestige and appearance.
4) Not much is mentioned on the methodology of the census. The article does mention the number of officials that conducted the census (about 2.7), the approximate number of towns (7,000) and villages (600,000), and outlined some of the challenges census officials faced (large area, diverse cultures, high levels of illiteracy, large homeless population).
5) Typical of many BBC News articles, the results are communicated in a clear informative manner. The information regarding total population and the statistics regarding gender gaps are straightforwardly written. A small sidebar within the article provides a easy way to review some of the main statistics.
6) One graph is included in the article. It is used in a clear informative manner. The graph has a clear title, “Falling number of girls born in India since 1961.” Both axis of the graphs are labeled, and the source is located right underneath the graph.
"India Census: Population Goes up to 1.21bn." BBC News. British Broadcasting Corporation, 31 Mar. 2011. Web. 31 Mar. 2011..
BBC NEWS
http://www.bbc.co.uk/news/world-south-asia-12916888
Claire V. Madill
1) This article describes 2011 Indian census, which collected information regarding India’s population and classified the population according to gender, religion, education, and occupation. This survey was conducted by 2.7 million Indian census officials from India, who visited 670,000 towns and villages.
2) The sponsor of this research is obviously the government of India. The government of India conducted the survey on which all of the statistics in this article are based upon.
3) The government of India could have been interested in finding an highly optimistic number regarding the total population of India. India is a rising power, and its large population is one reason many believe it will become a main power in the international political and economic system. Overestimating the population makes India seem even stronger and larger and also makes India appear like more of a competitive threat to China.
This article also mentions statistics regarding the gender gap between girls and boys in India. The Indian government might be interested in underestimating the gap or providing evidence that the gap is closing. Such a finding would make it seem like India is advancing in the way of human rights, improving the India’s prestige and appearance.
4) Not much is mentioned on the methodology of the census. The article does mention the number of officials that conducted the census (about 2.7), the approximate number of towns (7,000) and villages (600,000), and outlined some of the challenges census officials faced (large area, diverse cultures, high levels of illiteracy, large homeless population).
5) Typical of many BBC News articles, the results are communicated in a clear informative manner. The information regarding total population and the statistics regarding gender gaps are straightforwardly written. A small sidebar within the article provides a easy way to review some of the main statistics.
6) One graph is included in the article. It is used in a clear informative manner. The graph has a clear title, “Falling number of girls born in India since 1961.” Both axis of the graphs are labeled, and the source is located right underneath the graph.
"India Census: Population Goes up to 1.21bn." BBC News. British Broadcasting Corporation, 31 Mar. 2011. Web. 31 Mar. 2011.
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