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

A consumer products company wants to interview customers regarding a new product.If it wishes to adhere to a predetermined pattern of questions in the interview,which of the following would likely be used?

The use of charts and graphs is an example of:

A short survey with closed-end questions is likely to have a better response rate than a long survey with open-ended questions.

When a small sample is used,a stratified random sample is more likely to provide the desired information than a simple random sample.

An accountant has recently prepared a report for a client that contains a variety of graphs and charts.In doing so,she has used descriptive statistical methods.

In Excel,what procedure is used to select random numbers?

General Electric Corporation tracks employee turnover annually.It currently has a data set that contains turnover for the past 20 years.What type of data does it have?

On a survey,the questions pertaining to the background of the respondent (age,gender,etc. )are referred to as demographic questions.

Open the data file provided with the text called AirlinePassengers.Indicate the level of data measurement for each variable in the data set.

A major fast-food chain has installed a device that measures the temperature of the hamburgers on the grill.These data are stored in a computer file.If you were to analyze these data,you would be working with ordinal level data.

When stratified random sampling is employed,the population is divided into homogeneous subgroups called strata.

A sales manager has five salespeople.The following are the number of units sold by the five salespeople during the past week: {5,13,6,2,4}.Based on the data,the mean number of units sold was 6 units.

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.Which of the variables would be classified as nominal level data?

Explain the difference between a stratified random sample and cluster random sample.

An Internet-based or emailed survey is not an alternative method of data collection.

What are the advantages and disadvantages of open-end questions in either a written survey or a personal interview?

Estimation and hypothesis testing are categories of:

Data collected at a fixed point in time are:

What is meant by the term statistical inference?

Recording vehicle type as sedan,minivan,pick-up truck,etc.is an example of qualitative data.