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2-1) You are working in your spare time for a consumer organization that is chec

ID: 2125348 • Letter: 2

Question

2-1) You are working in your spare time for a consumer organization that is checking on whether or not the small house brand cereal boxes sold in the local supermarket each have the actual number of grams of cereal listed on the box. The market manager claims that their food processors actually "overfill" the boxes so that consumers are not cheated, but several members of your organization are skeptical. You purchase six boxes of each of three types of cereal, Tasteeos (rated at 21g), Honey Nut Tasteeos (rated at 25g), and Raisin Bran (rated at 35g). The packaging for all three types of cereal is identical and consists of a cardboard box and an inner plastic wrapper. Using an electronic balance you determine that the mass a box and wrapper without the cereal is 17.7g. Next you find the total masses for each of the boxes. Your results are shown in the following table.

Raisin Bran(g)____________Tasteeos(g)__________Honey Nut Tasteeos(g)

65.6____________________40.8________________43.6

63.1____________________42.9________________45.1

67.7____________________42.3________________44.2

66.0____________________41.9________________45.8

66.4____________________42.5________________44.8

67.7____________________40.5________________45.1



  

Note: These data are based on Food Lion Brand cereal purchased in North East, MD on Sept. 1, 2010.

(a)    Examine the three sets of data. Before doing any calculations, which set do you predict will have the largest standard deviation? The smallest standard deviation? Give reasons for your predictions. Note: No points will be taken off for an incorrect prediction as long as the reasons you give for your predictions are consistent with the nature of the predictions.


(b)   Using the method described in Appendix C at the bottom of pg. A-20 of the Workshop Physics Activity Guide, find the average and standard deviation for the mass of the cereal (excluding the packaging) in the boxes of Raisin Bran.  Notes: (1) It

Explanation / Answer

1.) A financial market is a market in which people and entities can trade financial securities, commodities, and other fungible items of value at low transaction costs and at prices that reflect supply and demand. Securities include stocks and bonds, and commodities include precious metals or agricultural goods.

There are both general markets (where many commodities are traded) and specialized markets (where only one commodity is traded). Markets work by placing many interested buyers and sellers, including households, firms, and government agencies, in one "place", thus making it easier for them to find each other. An economy which relies primarily on interactions between buyers and sellers to allocate resources is known as a market economy in contrast either to a command economy or to a non-market economy such as a gift economy.

In finance, financial markets facilitate:

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