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BESC 3010 Exam 2 Complete Questions And Solutions
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BESC 3010 Exam 2 Complete Questions And Solutions
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BESC 3010 Exam 2 Complete QuestionsAnd Solutions
Inferential statistics are typically contrasted with _____ statistics. CORRECT
ANSWERS descriptive
Which of the following is a defining characteristic of experiments? CORRECT
ANSWERS Manipulations
In an experiment, the variable that the researcher manipulates is called the _____
variable. CORRECT ANSWERS independent
If a researcher is able to survey 99% of all students enrolled in statistics classes at a
college, then that researcher has gathered data from a(n)... CORRECT ANSWERS
sample
The variable that is measured as the outcome in an experiment is called the _____
variable. CORRECT ANSWERS dependent
A question that asks a person how strong their motivations for religious participation are
using a 1-7 rating scale is at _____ level of measurement. CORRECT ANSWERS either
the ordinal or the interval
For a study to be considered an experiment, it must have... CORRECT ANSWERS a
manipulation
In an experiment that looks at the effect of different teaching methods on student
learning, the independent variable is... CORRECT ANSWERS the teaching method
If a web marketer compares the effectiveness of two online ads in getting clicks by
gathering data from 3 million Internet shoppers, the population of interest is...
CORRECT ANSWERS all internet shoppers
A score's frequency is determined by... CORRECT ANSWERS how often it occurs in
the data set.
Which type of chart would be most appropriate for a nominal variable? CORRECT
ANSWERS bar graph
A distribution such as income that has most of the people at the bottom or middle but a
few people with extremely high scores, is referred to as... CORRECT ANSWERS
positively skewed
A histogram is appropriate when the data are... CORRECT ANSWERS quantitative
, One visual difference between a bar chart and a histogram is that in a histogram...
CORRECT ANSWERS the adjacent bars touch but in a bar chart they are separate.
A normal distribution has a value of skewness that is _____. CORRECT ANSWERS
near zero
A frequency bar graph would be most appropriate for which measurement scales?
CORRECT ANSWERS Nominal or ordinal
The normal distribution is... CORRECT ANSWERS mesokurtic
A histogram is not appropriate when the data are... CORRECT ANSWERS at the
interval or ratio level of measurement.
A normal distribution generally has _____ skew. CORRECT ANSWERS no
A uniform distribution is... CORRECT ANSWERS platykurtic
Which measure of central tendency works for nominal variables? CORRECT
ANSWERS Mode
Which measure of central tendency is most appropriate for skewed distributions?
CORRECT ANSWERS Median
The three most common measures of central tendency are: CORRECT ANSWERS
mean, median, mode
What is the minimum level of measurement needed to calculate the mode? CORRECT
ANSWERS nominal
Which of these measures is LEAST affected by outliers? CORRECT ANSWERS
median
Which measure of central tendency is LEAST efficient? CORRECT ANSWERS mode
Which of the following is NOT a measure of central tendency? CORRECT ANSWERS
standard deviation
What is the minimum level of measurement needed to calculate the median?
CORRECT ANSWERS ordinal
In a negatively skewed distribution, which measure will generally have the highest
value? CORRECT ANSWERS mode
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