Exam 1: An Introduction to Business Statistics

An example of a quantitative variable is the make of a car.

Measurements from a population are also known as

Temperature, (in degrees Celsius)is an example of a(n)________ variable.

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

Degree program entrance exam scores,such as MCAT scores,are an example of a(n)________________ variable.

Describe one weakness and one advantage to mailed surveys.

A sequence of operations that takes inputs and turns them into outputs is a _____.

If we sample without replacement,we do not place the unit chosen on a particular selection back into the population.

When we are choosing a random sample and we do not place chosen units back into the population,we are

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

A _____ variable can have values that are numbers on the real number line.

A _____ is a subset of the units in a population.

Each customer in a market research study is asked to identify their favourite beverage.The level of measurement for this study would be at the _____ level.

A process that is in statistical control does not necessarily imply that the process is __________ of meeting the customer requirements.

In situations when it is not possible to number all of the units in a population,we often use a _____ sample to approximate a random sample.

A _________ variable records into which of several categories a population unit falls.

A _____ plot is a graph of individual process measurements versus time.

The two levels of measurement for qualitative variables are

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

A random sample is selected so that,on each selection from the population,every unit remaining in the population on that selection has the same chance of being chosen.