Exam 1: The Where,Why,and How of Data Collection

In developing and conducting a survey,what is the purpose of the pre-test phase?

The human resources department at a major high tech company recently conducted an employee satisfaction survey of 100 of its 3,000 employees.Data were collected on such variables as age,gender,marital status,current salary,level of overall satisfaction on a scale from 1 to 5,number of years with the company,and job title.Considering the age variable where employees were asked to list their age at their last birthday,which of the following best describes the level of data measurement for that variable?

A company is interested in determining which of several advertising layouts is most effective at generating additional sales.The data collection tool that would most likely be used in this situation is:

Questions on a written survey dealing with the characteristics of the respondent (age,income,etc. )are referred to as categorical questions.

When comparing experiments,surveys,and direct observation as methods of data collection,the method that would typically be the least expensive is surveys.

A survey conducted by a local real estate agency asked respondents to indicate whether they preferred natural gas,electric,or oil furnaces for heating their home.The data collected for this variable would be of ordinal level.

Discuss the differences and similarities between statistical estimation and statistical hypothesis testing.

A grocery store is interested in determining whether its customers are satisfied with the quality of service provided.To collect the necessary data,interviewers have been hired to stand near the store's exits and to survey customers who have the time and interest to be surveyed.This type of sampling is called:

If you have an ordinal variable,it is possible to precisely measure the magnitude of the difference between the possible values of the variable.

When an interviewer asks a specified series of questions in the course of a personal interview,he/she is conducting an unstructured interview.

Of the following techniques for collecting data,which one is generally considered the least costly to implement: experiments,telephone surveys,mail questionnaires,direct observation,personal interview?

The high temperature is recorded each day for a period of 1 year.This is an example of:

Some of the most common methods of collecting data include experiments,telephone surveys,mail questionnaires,direct observations,and personal interviews.

Based on a survey of 400 students in a university in which 20 percent indicated that they were business majors.The university student newspaper reported that "20 percent of all the students at the university are business majors." This report is an example of:

A market research firm that surveys customers in a shopping mall by asking various people to respond to a short survey about a new product is performing convenience sampling.

In order to determine a parameter (such as a mean)of a population you would need to conduct a:

It is possible for an interviewer to interject bias into the data collection project by the way he or she asks the questions.

Suppose a professor collects survey data by passing out surveys in his/her classes,where the population of interest is defined as all students enrolled at that university.This is an example of nonstatistical sampling technique.

Sales data measured each week for the past twenty weeks are examples of time-series data.

A company conducted a survey of its employees to determine their level of satisfaction with various company policies.The data collected from this survey are: