The Pattern of Productivity Growth in the U

question 31

Multiple Choice

The pattern of productivity growth in the U.S. in the period 2010-2018, when compared to previous periods, suggests that

• A) businesses are investing in new technologies at an accelerating rate compared to previous periods.
• B) businesses are slowing down in their implementation of new productive technologies.
• C) consumers are spending a lot more on domestically produced goods and on new gadgets.
• D) there has been a sharp increase in the influx of immigrant workers into the country.

---

Definitions:

Sampling Error

The difference between a population parameter and a sample statistic that results from selecting a sample.

Expected Value

The predicted average outcome of a random variable, computed as the weighted average of all possible values.

Stratified Random Sampling

A probability sampling method in which the population is first divided into strata and a simple random sample is then taken from each stratum.

Strata

Subsets of a population that are known to be homogeneous with respect to some characteristic, used in stratified sampling.