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STATISTICS - CHAP. 1

SAMPLING TECHNIQUES

QuestionAnswer
GATHERING DATA FROM EVERY MEMBER OF THE POPULATION CENSUS
EVERY MEMBER OF THE POPULATION HAS AN EQUAL CHANCE OF BEING SELECTED RANDOM SAMPLING
DIVIDING THE POPULATION INTO GROUPS, CALLED CLUSTERS, THAT ARE EACH SIMILAR TO THE ENTIRE POPULATION AND SELECTING WHOLE CLUSTERS, AT RANDOM, TO SAMPLE CLUSTER SAMPLING
DIVIDING MEMBERS OF THE POPULATION INTO SUBGROUPS, CALLED STRATA, THAT SHARE SIMILAR CHARACTERISTICS AND SELECTING THE SAME NUMBER OF SUBJECTS FROM EACH STRATIFIED SAMPLING
SELECTING EVERY nth MEMBER OF THE POPULATION SYSTEMATIC SAMPLING
THE SAMPLE IS "CONVENIENT" FOR THE RESEARCHER TO SELECT CONVENIENCE SAMPLING
DRAWING NAMES FROM A HAT RANDOM SAMPLING
A POLLSTER SURVEYS 50 PEOPLE IN EACH OF A SENATOR'S 12 VOTING PRECINCTS. STRATIFIED
THE QUALITY CONTROL DEPARTMENT AT A CEREAL MANUFACTURER MEASURES THE WEIGHT OF EVERY 10th BOX OFF OF THE ASSEMBLY LINE. SYSTEMATIC SAMPLING
A FEMALE STUDENT WALKS DOWN THE HALL IN HER SORORITY HOUSE ASKING HOW MUCH MONEY EACH PERSON SPENDS ON CD's IN A MONTH CONVENIENCE
AN EDUCATOR CHOOSES 5 OF THE SCHOOL DISTRICTS IN THE CHICAGO AREA AND ASKS EACH HOUSEHOLD IN THOSE DISTRICTS HOW MANY SCHOOL-AGE CHILDREN ARE IN THE HOME CLUSTER
TO DETERMINE WHO WILL WIN A $100,000 SHOPPING SPREE AT THE MALL, THE MANAGER DRAWS A NAME OUT OF A BOX OF ENTRIES RANDOM
THE DEPARTMENT SECRETARY LISTS EACH PROFESSOR & THEIR SALARY IN ORDER TO DETERMINE THE AVERAGE SALARY OF PROFESSORS IN THE ENGLISH DEPARTMENT AT HER UNIVERSITY CENSUS
PARTICIPANTS VOLUNTEER TO BE A PART OF THE STUDY; SELF-SELECTED SURVEY CONVENIENCE
THE FDA CHOOSES 15 HOSPITALS AROUND THE COUNTRY AT RANDOM. EVERY DOCTOR IN THE CHOSEN HOSPITALS IS REQUIRED TO PARTICIPATE IN THE STUDY. CLUSTER
A STATE POLITICIAN WANTS TO GAUGE PUBLIC OPINION IN HIS AREA BEFORE DECIDING TO RUN FOR RE-ELECTION. FOR THE STUDY, 200 REGISTERED VOTERS ARE CHOSEN AT RANDOM FROM EACH COUNTY IN HIS DISTRICT. STRATIFIED
IN ORDER TO COMPLETE A PSYCHOLOGY PROJECT, YOU PASS OUT SURVEYS TO THE FIRST 25 PEOPLE YOU FIND IN THE STUDENT UNION. CONVENIENCE
A SUPERINTENDENT WANTS TO KNOW THE AVERAGE READING LEVEL OF ALL STUDENTS IN THE THIRD GRADE AT A LOCAL ELEMENTARY SCHOOL. CENSUS
FOR BUDGET PURPOSES, ADMINISTRATORS NEED TO KNOW THE AVERAGE SALARY OF TENURED FACULTY AT THE UNIVERSITY OF KALAMAZOO. CENSUS
1,000 PHONE NUMBERS WERE SELECTED BY A COMPUTER TO BE CALLED FOR A TELEPHONE SURVEY. RANDOM
Created by: jacob822
 

 



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