Question

Thirty companies comprise the DJIA. How big are these companies? One common method for measuring the size of a company is to use its market capitalization, which is computed by multiplying the number of stock shares by the price of a share of stock. On March 14, 2014, the market capitalization of these ­companies ranged from Traveler’s $ 29.1 billion to ExxonMobil’s $403.9 billion. The entire population of market capitalization ­values is stored in DowMarketCap. (Data extracted from money. cnn. com, March 14, 2014.) Decide whether the market capitalization of companies in the DJIA appears to be approximately normally distributed by
a. comparing data characteristics to theoretical properties.
b. constructing a normal probability plot.
c. constructing a histogram.


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  • CreatedJuly 16, 2015
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