Statistics - Chapter 1.3 - The Process of a Statistical Study

Classify the following scenario as a meta-analysis or a case study. One of every three bolts is precisely measured to determine if the machine that produces the bolts is correctly calibrated.

Case Study

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 college.

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 school.

Census

Identify the sampling technique used for the following study. A random number generator is used to choose ten cities. Then a crime researcher collects data from each person in these cities.

Cluster Sampling

Identify the sampling technique used for the following study: A market researcher interviews each member from each of the five randomly chosen neighborhoods throughout a city.

Cluster Sampling

When conducting legal experiments on animals, a researcher needs to obtain consent from the ________.

Institutional Research Board

When working with humans or animals, the _______ requires extensive proof that no physical or mental harm will occur to the subjects in the study.

Institutional Research Board

The _________ will require researchers to fill out documents describing their proposed study in detail.

Institutional Review Board

Classify the following scenario as a meta-analysis or a case study. A meteorologist studies fifteen weather reports from hurricanes to compare for common factors.

Meta-Analysis

Determine whether an observational or experimental study is appropriate to address the following statement. A gas station owner wants to identify if her customer base is shrinking.

Observational

Determine whether an observational or experimental study is appropriate to address the following statement: A deli cart entrepreneur wants to find out if her customer base is shrinking.

Observational

An experiment in which only the subject does not realize whether they have been placed in the experimental or control group is _________.

Single-Blind

Identify the sampling technique used for the following study. A scientist chooses ten people at random from each math class.

Stratified Sampling

Identify the sampling technique used for the following study. First, the population is subdivided by region. Then a biologist uses a random number generator to select twenty-five members from each region to study.

Stratified sampling

Identify the sampling technique used for the following study. For budget purposes, a financial advisor needs to know the average length of tenure of instructors at their school.

Stratified sampling

Select the term which best describes the following scenario. A new painkiller is studied. A group of people with chronic pain participating in the study are administered the drug.

Treatment Group