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

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 food warehouse manager plans to conduct a check on damaged packages. The warehouse covers a large area and products are spread out over the entire building. Assuming that no products are more likely to have damaged packages than any other, what statistical sampling method would be used to reduce the time and effort required to do the study?

When university newspaper reporters take a poll of students by standing outside of the nearest pub to survey students about the university offering upgraded food options, the sampling method used is called a random sample.

Statistics is a discipline that involves tools and techniques used to describe data and draw conclusions.

Data collected at a fixed point in time are:

One of the most common statistical sampling techniques is convenience sampling.

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

Some stores and restaurants have "tell us what you think" cards available for customers. Assuming that angry customers are more likely to take the time to fill these out, this is an example of:

Discuss the steps involved in developing and carrying out a written survey.

What is the underlying common element of all statistical sampling techniques?

Data collected using open-end questions is generally easier to analyze than data collected from closed-end questions.

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 following best describes the overall data set that was generated from the study?

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

Estimation and hypothesis testing are categories of:

If an analyst computes statistics from a sample, the sample is by definition a statistical sample.

The human resources department at a major high tech company plans to conduct an employee satisfaction study by sampling 100 employees from the 3,000 total employees. They plan to use systematic random sampling since the employee file is in alphabetic order. The first employee selected in the study should be:

Experimental design is a plan for performing an experiment where the effects of one or more factors on the variable of interest are measured.

A car manufacturer stated in its advertising that the gas mileage for its hybrids will be greater than 40 mpg on average. A consumer agency tested a sampling of the hybrids under a variety of conditions. Based on these tests, the agency concluded that the manufacturer was justified in making this claim. The process described is an example of:

One way to improve the response rate for a survey is to administer the surveys directly to the respondents.

In an unstructured interview the questions are scripted.