Exam 1: Introduction

When using interval data, one cannot

For ordinal data, we can _______, but for nominal data we cannot.

Is the following nominal, ordinal, interval, or ratio data? Explain your answer. -Scores of a basketball team in each of 10 games

Is the following nominal, ordinal, interval, or ratio data? Explain your answer. -Credit card numbers

The annual sales for a manufacturing company for each of the past five years were $\$ 600,000, \$ 721,000, \$ 138,000, \$ 621,000$ , $\$ 865,000$ . Which of the following conclusions can be obtained from these figures by purely descriptive methods, and which require generalizations? -With the information provided, solve the following: Among the five years, the highest sales were in the fifth year.

For an interviewer who wants accurate information, it is undesirable to "beg the question."

On a statistics test, five students in a large class obtained the grades $75,84,92,87,84$ . Can the following conclusion be obtained by purely descriptive methods or does it require a generalization? Explain your answer. -None of the grades differs from 83 by more than 8 points.

Descriptive statistics involves making generalizations.

The art of describing the data belongs under the heading of statistical inference.

Is the following nominal, ordinal, interval, or ratio data? Explain your answer. -Grades on a test in which the lowest grade is 0

If the apartment numbers in a large building are looked upon as data, they would fall into the _______ category.

With ordinal data we are allowed to _______.

Is the following nominal, ordinal, interval, or ratio data? Explain your answer. -Stock prices

"Begging the question" is involved when the sample of people is not appropriate for the study.

Is the following nominal, ordinal, interval, or ratio data? Explain your answer. -Social Security numbers

Is the following nominal, ordinal, interval, or ratio data? Explain your answer. -Supermarket customers rank order their preferences for 10 products.

When using ratio data, one cannot