1.3 Process of a Statistical Study
experimental
Determine whether an observational or experimental study is appropriate to address the following statement. A car wash operator wants to find out if using a new cleaning product will reduce staffing costs.
observational
Determine whether an observational or experimental study is appropriate to address the following statement. A gas station owner wants to know if commuters frequent her establishment often.
experimental
Determine whether an observational or experimental study is appropriate to address the following statement. A gift shop owner wants to study if using a new cleaning product will reduce staffing costs.
observational
Determine whether an observational or experimental study is appropriate to address the following statement. A gift shop owner wants to study the average age of his clientele.
random
Identify the sampling technique used for the following study. A college student selects five hundred student IDs from his campus using a random number generator to find the amount of student aid each receives. Census stratified systematic random cluster convenience
census
Identify the sampling technique used for the following study. Collect information from each member of the group you wish to study. Census stratified systematic random cluster convenience
stratified
Identify the sampling technique used for the following study. First, the population is subdivided by city. Then a biologist uses a random number generator to select members from each city to study. Census stratified systematic random cluster convenience
stratified
Identify the sampling technique used for the following study. First, the population is subdivided by metropolitan area. Then a crime researcher uses a random number generator to select twenty-five members from each metropolitan area to study Census stratified systematic random cluster convenience
single-blind
In a _____________ experiment, only the subject does not know whether they received a placebo or treatment.
census
Identify the sampling technique used for the following study. Gather data from each member of the population. Census stratified systematic random cluster convenience
double-blind
In a __________ experiment, neither researchers nor partakers know whether the partaker is in the control group or the treatment group.
stratified
Identify the sampling technique used for the following study. A market researcher chooses ten people at random from each math class. Census stratified systematic random cluster convenience
stratified
Identify the sampling technique used for the following study. A market researcher chooses thirty members of the sampling frame at random from each neighborhood. Census stratified systematic random cluster convenience
random
Identify the sampling technique used for the following study. A market researcher gathers data from fifty stores by assigning each store an ID and selecting IDs using a random number generator. Census stratified systematic random cluster convenience
cluster
Identify the sampling technique used for the following study. A market researcher interviews each member from each of the five randomly chosen freshmen dormitories at universities across the country Census stratified systematic random cluster convenience
convenience
Identify the sampling technique used for the following study. A market researcher interviews the first fifteen members to leave. Census stratified systematic random cluster convenience
systematic
Identify the sampling technique used for the following study. A pollster interviews every fifteenth member from the entire sampling frame. Census stratified systematic random cluster convenience
random
Identify the sampling technique used for the following study. A quality assurance analyst uses a computer program to select the VIN number of two hundred cars off the production line to research the safety of that make and model. Census stratified systematic random cluster convenience
cluster
Identify the sampling technique used for the following study. A random number generator is used to choose twenty-five regions. Then a political strategist collects data from each person in these regions. Census stratified systematic random cluster convenience
cluster
Identify the sampling technique used for the following study. A school administrator interviews each member from each of the fifteen randomly chosen voting districts in a county. Census stratified systematic random cluster convenience
systematic
Identify the sampling technique used for the following study. After a quality assurance analyst has enumerated a sampling frame, she picks a random starting point and chooses every tenth member. Census stratified systematic random cluster convenience
Census
Identify the sampling technique used for the following study. For budget purposes, a financial advisor needs to know the average length of tenure of employees at their school Census stratified systematic random cluster convenience
census
Identify the sampling technique used for the following study. For tax purposes, a secretary needs to know the average cost of health plans of instructors at their university. Census stratified systematic random cluster convenience
convenience
Identify the sampling technique used for the following study. In order to influence the outcome of the study, a biologists hand-selects the first fifteen members to arrive to be studied in depth. Census stratified systematic random cluster convenience
Census
Identify the sampling technique used for the following study. Select each member of the population. Census stratified systematic random cluster convenience
