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发表于 2011-3-4 14:35 | 只看该作者

Reading 10: Sampling and Estimation-LOS c 习题精选

border, example, between, 2011
Session 3: Quantitative Methods: Application
Reading 10: Sampling and Estimation

LOS c: Distinguish between time-series and cross-sectional data.

 

 

Monthly Gross Domestic Product (GDP) figures from 1990-2000 are an example of:

A)
 cross-sectional data.
B)
 time-series data.
C)
 systematic data.

 

A time-series is a group of observations taken at specific and equally spaced points in time. Cross-sectional data are observations taken at a single point in time.

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1215

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2#
发表于 2011-3-4 14:35 | 只看该作者

The sample of per square foot sales for 100 U.S. retailers in December 2004 is an example of:

A)
 cross-sectional data.
B)
 unbiased data.
C)
 time-series data.

Cross-sectional data are a sample of observations taken at a single point in time. A time-series is a sample of observations taken at specific and equally spaced points in time.

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