Exam 7: Qualitative and Quantitative Sampling

Define the following: -parameter

Define the following: -sampling element

What is the population in random-digit dialing (RDD)? Does it avoid sampling frame problems?

Define the following: -inferential statistics

The Toronto Fire Department has hired you to generate an accurate estimate of how many homes have operational fire prevention systems.The Chief Fire Inspector gave you a list of two million residential telephone customers in the city.You sampled every two-thousandth address on the list.You survey each sampled household by telephone. How large is your sample?

Define the following: -purposive sampling

Define the following: -sampling frame

Define the following: -nonrandom sample

What is the basic difference between random and nonrandom sampling procedures?

What are sociograms used to depict?

Market researcher Tanya Tanika wants to test whether men like a new flavour of yogurt,which tastes like cigar smoke and beer,more than women do.She distributes samples at a grocery store,including 50 samples in blue cups to adult males and 50 samples in pink cups to adult females shopping alone.Afterward,she checks shelves and garbage cans to locate the used blue and pink cups and measures whether more waste (i.e.,uneaten yogurt)was left in blue or pink cups.What type of sampling was used in the study?

Define the following: -census

_____ combines characteristics of the sample,such as the sample's size,with the central limit theorem for the purpose of accurately predicting specific ranges around a population parameter.

Define the following: -quota sampling

What steps are involved when drawing a cluster sample? Illustrate your answer with an example and also a summary of how you obtained the sample of 240 respondents.

Define the following: -probability proportionate to size (PPS)

Professor Mary Mancini studied class level and drinking behaviour at Rocky Mountain University in Red Deer,Alberta.At Rocky Mountain,every student is required to live in one of six 20-story dormitories,and every student has a single room.All dormitory room phone numbers begin with the prefix 747 or 757 .She used the student telephone directory and,after a random start,selected every fifteenth student.She then mailed a questionnaire to the 1000 students selected and had two follow-up postcard reminders.A total of 900 students returned questionnaires.Later,Professor Mancini asked the university registrar's office whether any students were omitted from the directory. What type of sampling did Professor Mancini use?