The data we collected is a simple random sample. We collected our baseball by the dozen from six different athletic stores in our Atlanta area, two dozen came from separate dealerships in Alabama, another three dozen from separate stores in South Carolina, and one dozen from an online internet source. All stores were randomly selected out of a total of fifty stores and Internet sites around the United States. The stores were labeled alphabetically from 01-50 and using a random number table, we chose twelve numbers and used the properly labeled dozen of baseballs. After our sample was collected we massed them using an enclosed scale so no outer air could affect the mass of the ball. We massed the balls in ounces and to the hundredth decimal place. Our null hypothesis was: The mass of a baseball is equaled to five ounces. (u=5 oz.). Our alternative hypothesis was: The mass of a baseball is not equaled to five ounces. (u=5 oz.). [continues]
Cite This Essay
(2008, 07). Baseballs. StudyMode.com. Retrieved 07, 2008, from http://www.studymode.com/essays/Baseballs-157542.html
"Baseballs" StudyMode.com. 07 2008. 07 2008 <http://www.studymode.com/essays/Baseballs-157542.html>.
"Baseballs." StudyMode.com. 07, 2008. Accessed 07, 2008. http://www.studymode.com/essays/Baseballs-157542.html.