The Bureau of Labor Statistics announces that last month it interviewed all memb

Question

The Bureau of Labor Statistics announces that last month it interviewed all members of the labor force m a sample of 60,000 households and found that 6.7% of the people interviewed were unemployed. The number 6.7% is a: a. Population. b. Parameter c. Sampling Distribution d. Statistic e. Sample To study the electrical changes in muscles as they get tired, student subjects were required to hold their arms above their shoulders until they got so tired they had to drop them. Meanwhile, the electrical activity in their arm muscles was measured. This is an example of: a. An observational study b. A randomized comparative experiment c. Child abuse and an unethical study d. A sampling experiment

Explanation / Answer

10) The number 6.7% is a statistic.Statistic is any number which is calculated from a sample. So in this case, there is a sample of 60000 households.

11) This is an example of a sampling experiment. In sampling a representative group of the population is chosen. A sample is generally a group of people who take part in the investigation.

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