Recent Statistics Questions & Answers

please install gapminder package. Gapminder contains life expectancy, GDP per capita, and population by country. install.packages("gapminder") library

3) Data, measures, and methods: Describe what data you use and how you operationalize your variables (i.e., what they intend to measure, and how each

The database provided combines data from the World Bank, the United Nations (UN), and the Division of Environmental Sciences of the Oak Ridge National

1. Explain the difference between ratio, interval, ordinal, and nominal scales of measurement. Which are used for parametric tests, which are used for

a) Using an appropriate set of STATA commands, estimate this model, and then copy and paste the output into your assignment. Be sure to include ALL of

Paul Cheng, the sole owner of Great Eastern Toys, and John Li, the firm’s general manager, are currently considering whether to extend its exist

1. A bacteriologist is studying the antibiotic properties of four solutions (labeled T1 through T4 in the dataset antibiotics on Canvas). The bacterio

a.  Specify the model you will be estimating.  You wish to assess the effects of the log of GDP, the log of employment, the log of total fac

a) For each of the two, plot (scatterplot) Prices (on y-axis) against Sales (on x-axis), and fit a straight line and a quadratic line into the data in

2. You are interested in investing in a new technology venture called Voice Activated Ignition, Inc. (VAI).  You are forecasting sales to be $20