Percent Changes in CPI-U
The following table displays the percent changes in CPI-U (Consumer Price Index for Urban Consumers) for categories including services, food, and other goods and services that people buy for day-to-day living. All taxes directly associated with the purchase and use of items (such as, in the United States, sales tax) are included in the index. An increase in CPI-U by a certain fractional amount means an increase by that fractional amount in overall prices within the relevant category.
For analyzing general price trends in the economy, seasonally adjusted prices are usually preferred over unadjusted prices because adjusting eliminates the effects of changes that normally occur at the same time and in about the same magnitude every year-- such as price movements resulting from climatic conditions, production cycles, model changeovers, and holidays.
For each of the following, select Yes if the statement is inferable from the given information. Otherwise, select No.
The changes in seasonally adjusted prices for transportation services between March 2010 and September 2010 were, on average, less than the changes in seasonally adjusted prices of energy services for the same period.
The seasonally adjusted price for used cars and trucks was higher in Sep 2010 than it was in Mar 2010.
The magnitude of the seasonally unadjusted price change of apparel in Sep 2010 over the previous year was more than the combined seasonally adjusted price changes in Mar 2010 and Apr 2010 over their respective previous month.
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source: GMAT Prep, GMAT Pill
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