A social researcher in a particular city wishes to obtain information on the number of children in households that receive welfare support. A random sample of 400 households is selected from the city welfare rolls. A check on welfare recipient data provides the number of children in each household. Answer questions (a), (b), (c), and (d) in Exercise 1.1 for this sample survey
REFERENCE:
1.1 : Selecting the proper diet for shrimp or other sea animals is an important aspect of sea farming. A researcher wishes to estimate the mean weight of shrimp maintained on a specific diet for a period of 6 months. One hundred shrimp are randomly selected from an artificial pond and each is weighed.
a. Identify the population of measurements that is of interest to the researcher.
b. Identify the sample.
c. What characteristics of the population are of interest to the researcher?
d. If the sample measurements are used to make inferences about certain characteristics of the population, why is a measure of the reliability of the inferences important?
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