# Question: A What is a population b What is a sample Why

a. What is a population?

b. What is a sample? Why is sampling useful?

c. What is a census? Would you always want to do a census if you had the resources?

b. What is a sample? Why is sampling useful?

c. What is a census? Would you always want to do a census if you had the resources?

**View Solution:**## Answer to relevant Questions

a. What is the standard error of a statistic? b. In what way does the standard error indicate the quality of the information provided by an estimate? c. What typically happens to the standard error as the sample size, n, ...What is a frame? What is its role in sampling? At a medical clinic, patient office visits are found to last a mean time of 17 minutes, with a standard deviation of 10 minutes. Assume that the probability distribution of time is independent from one patient to another. a. ...Consider the percent change in revenues for the five largest soap and cosmetics firms as shown in Table 8.6.3. View this list as a (very small!) population with just N = 5 units. Consider drawing samples of size n = 2. a. ...A poll involved interviews with 1,487 people and found that 42.3% of those interviewed were in favor of the candidate in question. The election will be held in three weeks. a. Approximately what percentage of the entire ...Post your question