Question

A large-scale survey of 16,607 women from 42 cities around the world reports that 84% of women experience their first street harassment before the age of 17. Describe the statistic, population, and population parameter for this setting.

Answer 1

Answer: The statistics in the report shows that the result has 84% confidence interval. Which means that 84% of the result can be true while 16% of the result can be false.

Since the survey is carried out on 16,607 women, that means the number of sample, which is the population is 16,607. The population does not have any treatment group.

The population parameter for this setting is that, the selected population are only women within 42 cities around the world. This means that the survey research is limited to be considered as true for women before the age of 17, only around the cities the survey was carried out.

Answer 2

A statistic refers to a quantity that is computed from values in a sample. This is quite often the mean. In this case, the statistic would be that 84% of women experience sexual harassment before the age of 17.

The population of a study is the set of similar items that is of interest in a question. In this example, the population is that of women.

The population parameter is the quantity that is entering into the probability distribution of a statistic or random variable. This would be the women before the age of 17.