Chapter 1 Assessment
Which of the following is true? Data is collected and analyzed for you by computer programs, so there is no need to understand statistics. Statistics is never required to make personal decisions. No matter what your career, you need a knowledge of statistics to understand the world. Statistical techniques are only useful for certain professions.
No matter what your career, you need a knowledge of statistics to understand the world.
Which one of the following is not an example of discrete data? Number of members of the Denver Lions Club Number of employees reporting in sick Number of miles between New York City and Chicago Number of households watching the Home Shopping Network
Number of miles between New York City and Chicago
The final rankings of the top 20 NCAA college basketball teams are an example of which level of measurement? Ordinal Interval Nominal Ratio
Ordinal
Which word is not part of the definition of descriptive statistics? Organizing Predicting Presenting Summarizing
Predicting
The names of the positions in a corporation, such as chief operating officer or controller, are examples of what type of variable? Qualitative Interval Ratio Quantitative
Qualitative
The reported unemployment is 5.5% of the population. What level of measurement is used to measure unemployment? Ordinal Nominal Interval Ratio
Ratio
The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called statistics. levels of measurement. descriptive statistics. inferential statistics.
statistics.
When TV advertisements report that "2 out of 3 dentists surveyed indicated they would recommend Brand X toothpaste to their patients," an informed consumer may question the conclusion because the sample of dentists is clearly explained. the sample was only 5 dentists. the advertisement does not include the total number of dentists surveyed. the conclusion is not illustrated with a graph.
the advertisement does not include the total number of dentists surveyed.
The American Statistical Association encourages statisticians to mislead people when reporting findings and results. has no approved ethical standards for statisticians. advises statisticians to "lie with statistics." has guidelines which advise statisticians to maintain ethical standards.
has guidelines which advise statisticians to maintain ethical standards.
Income is a variable often used in business and economics. Income is an example of a variable that uses the ratio scale. ordinal scale. interval scale. nominal scale.
ratio scale.