Posted: November 13th, 2015
Class Assignment
An outlier is an extreme value greater than the mean. (Points : 1)
True
False
Question 2.2. In a frequency distribution such as a bell-shaped curve, what does
the vertical height of the curve indicate? (Points : 1)
The different score values
The frequency of score occurrence
The probability of score occurrence
The normality of the distribution
Question 3.3. If a manager wants to know the typical deviation in workers’
productivity, she will calculate the range. (Points : 1)
True
False
Question 4.4. The probability of two independent events occurring together equals
the product of each of the individual event probabilities. (Points : 1)
True
False
Question 5.5. If sales data are reported in dollar values, what is the scale of the
data? (Points : 1)
Nominal
Ordinal
Interval
Ratio
Question 6.6. The mode is which of the following?
(Points : 1)
The most frequently occurring value in a set.
The middle-most value in a set of values.
The difference between the highest and lowest values in a set.
The arithmetic average of a set of values.
Question 7.7. Which statement explains what inferential statistical analysis is?
(Points : 1)
The process of describing the sample.
Understanding the population through the sample.
The accumulation of population characteristics.
Comparing dissimilar samples.
Question 8.8. If the ratio of difference compared to data variability is large in a
z score, which is true?
(Points : 1)
The data are probably not normal
The z score will be comparatively large
The data reflect a great deal of variability
The z score will be comparatively small
Question 9.9. A probability is found by dividing the number of possible outcomes
(o) by the number of successes € = o/e. (Points : 1)
True
False
Question 10.10. Which of the following defines standard deviation? (Points : 1)
The difference between the highest and lowest values.
The arithmetic average of a set of values.
The average difference between a set of values and the mean.
The average of the highest and lowest values in a set.
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