Exam 1: An Introduction to Business Statistics

In order to improve the quality of products and services,we must remove the root causes of process _____.

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

Ratio variables have the following characteristics:

Statistical inference is the science of using a sample of measurements to make generalization about the important aspects of a population of measurements.

The two types of quantitative variables are:

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

If a unit is placed back into the population after being selected for a sample,we are sampling _____.

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

Statistical methods help to:

In a voluntary response sample,what types of opinions are usually expressed?

Jersey numbers of soccer players is an example of a(n)___________ variable.

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

Weights of items obtained using a well-adjusted scale represents a(n)_____________ level of measurement.

If we examine some of the population measurements,we are conducting a census of the population.

Measurements from a population are called

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.

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

An identification of police officers by rank would represent a(n)____________ level of measurement.

A ____ is a display of individual process measurements versus time.

A(n)___________________ variable is a qualitative variable such that there is no meaningful ordering or ranking of the categories.