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# Statistics for Managers

Statistics

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## Quiz 3 : Numerical Descriptive Measures

When extreme values are present in a set of data, which of the following descriptive summary measures are most appropriate?
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C

In a perfectly symmetrical distribution
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C

In left-skewed distributions, which of the following is the correct statement?
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B

According to the empirical rule, if the data form a "bell-shaped" normal distribution, ________ percent of the observations will be contained within 2 standard deviations around the arithmetic mean.
Multiple Choice
Which of the following is sensitive to extreme values?
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Which of the following is NOT sensitive to extreme values?
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According to the empirical rule, if the data form a "bell-shaped" normal distribution, ________ percent of the observations will be contained within 1 standard deviation around the arithmetic mean.
Multiple Choice
Which measure of central tendency can be used for both numerical and categorical variables?
Multiple Choice
In right-skewed distributions, which of the following is the correct statement?
Multiple Choice
Which of the arithmetic mean, median, mode, and geometric mean are resistant measures of central tendency?
Multiple Choice
Which of the following statements about the median is not true?
Multiple Choice
In perfectly symmetrical distributions, which of the following is NOT a correct statement?
Multiple Choice
Which of the following statistics is not a measure of central tendency?
Multiple Choice
Which descriptive summary measures are considered to be resistant statistics?
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In a perfectly symmetrical bell-shaped "normal" distribution
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Which of the following is NOT a measure of central tendency?
Multiple Choice