Exam 1: An Introduction to Business Statistics

By taking a systematic sample,in which we select every 100^th shopper arriving at a specific store,we are approximating a random sample of shoppers.

Which one of the following is a categorical variable?

A _____ table is used to help select items for a random sample.

A consumer's yes/no reply to a survey question is what type of variable?

List two types of random sampling methods.

If the runs plot for a process shows increasing variation around a constant level,then the process is

A list of all of the units in a population is called a _____.

A _____ is a list of all the units in a population.

The change in daily price of a stock is what type of variable?

Any characteristic of a population unit is a(n):

Nonresponse reduces the sample size and may have a negative impact on the generalization of results if the individuals who do not respond are themselves nonrandom.

A set of units we wish to study is called a _____.

A process is in statistical control if it does not exhibit any unusual process variations.

Which one of the following is a quantitative variable?

A person's telephone area code is an example of a(n)_____________ variable.

When a population unit selected as part of the sample cannot be contacted or refuses to participate,then we say that _________ has occurred.

Statistical _____ refers to using a sample of measurements to make generalizations about the important aspects of a population.

_____ is the science of describing the important aspects of a set of measurements.

Undercoverage is when some units of the population are mistakenly included in the sample.

The number of kilometres a truck is driven before it is overhauled is an example of a(n)_____________ variable.