Stats 1.3 Process of Statistical Study
When conducting legal experiments on animals, a researcher needs to obtain consent from the a. Institutional Review Board b. International Review Board c. American Review Board d. Institutional Research Board e. International Research Board f. American Research Board
a. Institutional Review Board
Which scenarios demonstrate the use of a longitudinal study a. a patient with a thyroid condition gets her blood tested every six months to ensure her hormone levels are not rising b. a budget conscious checks the local grocery store circular ads to find the best prices on the items on her shopping list c. a transit authority reviews rout information for a particular bus line over the past few years to see if traffic has worsened and the route has taken longer to complete d. a beginning photographer wants to determine the average hourly rate charged in the area for wedding photography
a. a patient with a thyroid condition gets her blood tested every six months to ensure her hormone levels are not rising c. a transit authority reviews route information for a particular bus line over the past few years to see if traffic has worsened and the route has taken longer to complete
A random number generator is used to choose twenty-five classes. Then a college student collects data from each person in these classes a. census b. stratified sampling c. systematic sampling d. simple random sampling e. cluster sampling f. convenience sampling
e. cluster sampling
A random number generator is used to choose twenty-five zip codes. Then a biologist collects data from each person in these zip codes a. census b. stratified sampling c. systematic sampling d. simple random sampling e. cluster sampling f. convenience sampling
e. cluster sampling
For administrative purposes, a financial advisor needs to know the average cost of health plans of instructors at their college a. census b. stratified sampling c. systematic sampling d. simple random sampling e. cluster sampling f. convenience sampling
a. census
For administrative purposes, a secretary needs to know the average length of tenure of faculty at their school a. census b. stratified sampling c. systematic sampling d. simple random sampling e. cluster sampling f. convenience sampling
a. census
Select each member of the entire population. a. census b. stratified sampling c. systematic sampling d. simple random sampling e. cluster sampling f. convenience sampling
a. census
Test each member of the entire sampling frame a. census b. stratified sampling c. systematic sampling d. simple random sampling e. cluster sampling f. convenience sampling
a. census
A doctor compares five medical records from patients with a rare blood disease a. meta-analysis b. case study
a. meta-analysis
A citizens watch committee studies ten newspaper articles about crime prevention a. meta-analysis b. case study
a. meta-analysis b. case study
A car wash operator wants to know if commuters frequent her establishment often. a. observational b. experimental
a. observational
A gas station owner wants to find out whether customers are satisfied with the service they receive a. observational b. experimental
a. observational
In a experiment, only the participant does not know whether they have been placed in the control or experimental group a. single blind b. double blind
a. single blind
A sports writer studies the batting average, walk to strikeout ratio, and home runs hit for a certain baseball player for fifteen weeks for an article a. meta-analysis b. case study
b. case study
Fifteen bottles of water are sampled to test the purity of a water source a. meta-analysis b. case study
b. case study
A statistics student chooses one person at random from each zoning district a. census b. stratified sampling c. systematic sampling d. simple random sampling e. cluster sampling f. convenience sampling
b. stratified sampling
A statistics student chooses ten people at random from each neighborhood a. census b. stratified sampling c. systematic sampling d. simple random sampling e. cluster sampling f. convenience sampling
b. stratified sampling
First, the population is subdivided by city. Then a college student uses a random number generator to select twenty-five members from each city to study a. census b. stratified sampling c. systematic sampling d. simple random sampling e. cluster sampling f. convenience sampling
b. stratified sampling
First, the population is subdivided by metropolitan area. Then a biologist uses a random number generator to select fifteen members from each metropolitan area to study. a. census b. stratified sampling c. systematic sampling d. simple random sampling e. cluster sampling f. convenience sampling
b. stratified sampling
A study is done an a new drug designed to lower blood pressure. Individuals with high blood pressure are selected for the study and some are given pills containing the drugs while others are given pills that do not contain any of the drug. Even the group which did not take the drug sees an improvement in their blood pressure. What could be causing this? a. single blind b. double blind c. placebo effect d. treatment group
c. placebo effect
A scientist interviews each member from each of the five randomly chosen zoning districts in a town. a. census b. stratified sampling c. systematic sampling d. simple random sampling e. cluster sampling f. convenience sampling
e. cluster sampling
A statistics student interviews each member from each of the fifteen randomly chosen math classes at a university a. census b. stratified sampling c. systematic sampling d. simple random sampling e. cluster sampling f. convenience sampling
e. cluster sampling
