Web Exercises

Graph Pad Software has an online t-test that has a t-test calculator at https://www.graphpad.com/quickcalcs/ttest1.cfm. You can insert up to 50 rows of data into the calculator. You will be using this t-test calculator to analyze data from the Organization for Economic Co-Operation and Development where you will compare the fertility rates for Korea and Mexico from 2006 to 2015).

Fertility Rates for Korea and Mexico

Country

2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

Korea

1.1

1.3

1.2

1.1

1.2

1.2

1.3

1.2

1.2

1.2

Mexico

2.4

2.4

2.3

2.3

2.3

2.3

2.2

2.2

2.2

2.2

 

Data retrieved from http://stats.oecd.org/Index.aspx?DataSetCode=FAMILY

In your results, you will get the mean, standard deviation, standard error of measurement, samples size, t-statistic (obtained), degrees of freedom, confidence intervals, and more data. Using the information you learned from the chapter, reflect and discuss what you found.