Due to financial hardship, the Nyke shoe company feels they only need to make one size of shoes, regardless of gender or height. They have collected data on gender, shoe size, and height and have asked you to tell them if they can change their business model to include only one size of shoes – regardless of height or gender of the wearer. In no more 5-10 pages (including figures), explain your recommendations, using statistical evidence to support your findings. The data found are below:…
1. Suppose a researcher wants to design a new study with a power of 0.8 and a significance of 0.05 to test whether the caffeine content for a brand of coffee is really 100mg. A previous study gave a mean caffeine level for this brand of 110 mg and a standard deviation of 7 mg. Use PROC POWER to determine how many cups of coffee need testing.…
Quality Control: Assume that at least one of the tests from Part 4 was rejected (proportion not equal to targeted amount set by Masterfoods). Discuss how you would investigate the operations of the plant to determine why the proportions were off the targeted values. Speculate on three or more possible conditions in plant and bagging process that could have caused the observed results.…
X is a data frame as derived from the program R shown above in Figure 1. There are 274 observations of 11 variables. The number of observations is obtained from the number of rows while the number of variables is obtained from the number of columns.…
This handout provides information about the module’s second coursework. Below, you will find the coursework as well as information about the marking scheme.…
1. A radio station that plays classical music has a “By Request” program each Saturday night. The percentage of requests for composers on a particular night are listed below:…
3) Data Description For each of the variables, at least 30 observations of cross-sectional data must be obtained. Thus for the final research paper, a data matrix that is at least 30 rows by numbers of variables must be presented.In one paragraph, identify the data sources and describe the data (i.e., which government agencies supply the data, which methods are used to compile them, when they were collected, etc.).…
Investments. Who – 48 China/India/Chindia funds listed at globeinvestor.com. What – 1 month, 1 year, and 5 year returns for each fund. When – The most recent periods of time. Where – globeinvestor.com website. Why – To compare investment returns for future investment decisions. How – globeinvestor.com uses reports from the fund companies. Variables – There are three variables, all of which are quantitative. 1 month return; 1 year return; 5 year…
*This set of problems may take more than 4 hours to solve. The purpose is to provide you a set of problems for practice.…
More and more teachers find themselves teaching students from increasingly diverse linguistic and cultural backgrounds. In a recent report (National Center for Education Statistics, 2002), 42% of the teachers surveyed indicated that they had English Language Learners (ELLs) in their classroom, but only 12.5% of these teachers had received more than eight hours of professional development specifically related to ELLs (NCES, 2002). The significant achievement gap between language minority and language majority students (Moss & Puma, 1995), along with an educational climate that encourages inclusionary practices rather than separate, specialized programs, make it imperative that teacher preparation programs examine the knowledge, skills, and dispositions that mainstream teachers need to develop in order to work effectively with both ELLs and fluent Ester J. de Jong and English speakers (Echevarria, Vogt, & Short, 2004). Candace A. Harper are The purpose of this article is to present a frameprofessors in the School work that identifies areas of expertise necessary for of Teaching and mainstream teachers to be prepared to teach in classLearning of the College rooms with native and non-native English speakers. of Education at the Currently, explicit attention to the linguistic and University of Florida, cultural needs of ELLs is lacking in most teacher Gainesville, Florida. 101…
Sexual risk behaviors place adolescents at risk for HIV infection, other sexually transmitted diseases (STDs), and unintended pregnancy among U.S. school surveyed in 2011 from the Center of Diseases Control (CDC,2011). An estimated 8,300 young people aged 13–24 years in the 40 states reporting to CDC had HIV infection in 2009.Nearly half of the 19 million new STDs ( Sexually Transmitted Diseases) each year are among young people aged 15–24 years. More than 400,000 teen girls aged 15–19 years gave birth in 2009(CDC, 2009)…
An ordinal scale classifies data into distinct categories in which ranking is implied. Ordinal scaling is a stronger form of measurement than nominal scaling because an observed value classified into one category possesses more of a property than does an observed value classified into another category.…
Williams, A. “Online Homework vs. Traditional Homework: Statistics Anxiety and Self-Efficacy in an Educational Statistics Course,” Technology Innovations in Statistics Education, 6 (1), 2012.…
* 129.96 + 70.56 + 54.76 + 11.56 + 2.56 + 158.76 + 275.56 = 703.72…
Statistics is a mathematical science pertaining to the collection, analysis, interpretation or explanation, and presentation of data. It is applicable to a wide variety of academic disciplines, from the natural and social sciences to the humanities. Statistics is also used for making informed decisions in government and business.…