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标题: Reading 10: Sampling and Estimation-LOS c 习题精选 [打印本页]

作者: 1215 时间: 2011-3-4 14:35 标题: [2011]Session 3-Reading 10: Sampling and Estimation-LOS c 习题精选

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.

作者: 1215 时间: 2011-3-4 14:35

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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