TWENTY RANDOMLY SELECTED STATISTICS STUDENTS WERE GIVEN 15 MULTIPLE-CHOICE QUESTIONS AND 15 OPEN-ENDED QUESTIONS, ALL ON THE SAME MATERIAL.
TWENTY RANDOMLY SELECTED STATISTICS STUDENTS WERE GIVEN 15 MULTIPLE-CHOICE QUESTIONS AND 15 OPEN-ENDED QUESTIONS, ALL ON THE SAME MATERIAL.
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THE PROFESSOR WAS INTERESTED IN DETERMINING ON WHICH TYPE OF QUESTIONS THE STUDENTS SCORED HIGHER. THIS EXPERIMENT IS AN EXAMPLE OF
1) The main purpose of descriptive statistics is to
A. summarize data in a useful and informative manner
B. make inferences about a population
C. determine if the data adequately represents the population
D. gather or collect data
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
A. statistics
B. descriptive statistics
C. inferential statistics
D. levels of measurement
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
A. Qualitative
B. Continuous
C. Attribute
D. Discrete
4) What type of variable is the number of robberies reported in your city?
A. Attribute
B. Continuous
C. Discrete
D. Qualitative
5) What level of measurement is the number of auto accidents reported in a given month?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
6) The names of the positions in a corporation, such as chief operating officer or controller, are examples of what level of measurement?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
7) Shoe sizes, such as 7B, 10D, and 12EEE, are examples of what level of measurement?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
8) Monthly commissions of first-year insurance brokers are $1,270, $1,310, $1,680, $1,380, $1,410, $1,570, $1,180, and $1,420. These figures are referred to as
A. a histogram
B. raw data
C. frequency distribution
D. frequency polygon
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