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Question: Thirty companies comprise the DJIA. Just how


Thirty companies comprise the DJIA. Just 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 January 10, 2017, the market capitalization of these companies ranged from Traveler’s $33.3 billion to Apple’s $625.6 billion.
The entire population of market capitalization values is stored in DowMarketCap .
Source: Data extracted from money.cnn.com, January 10, 2017.
a. Compute the mean and standard deviation of the market capitalization for this population of 30 companies.
b. Interpret the parameters computed in (a).

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