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Chapter 3 Review Homework Question 9
Chapter 3 Review Homework Question 9
The following data represent exam scores in a statistics class taught using traditional lecture and a class taught using a “flipped” classroom. Complete parts (a) through (c) below.
(a) Which course has more dispersion in exam scores using the range as the measure of dispersion?
The traditional course has a range of _____ while the “flipped” course has a range of ____ . The ______ course has more dispersion.
(b) Which course has more dispersion in exam scores using the sample standard deviation as the measure of dispersion?
The traditional course has a standard deviation of ______ while the “flipped” course has a standard deviation of ____. The ______ course has more dispersion.
(c) Suppose the score of 59.6 in the traditional course was incorrectly recorded as ____. How does this affect the range?
The range is now _____
How does this affect the standard deviation?
The standard deviation is now ____
What property does this illustrate?
- Neither the range nor the standard deviation is resistant.
- Both the range and the standard deviation are resistant.
- The range is resistant, but the standard deviation is not resistant.
- The standard deviation is resistant, but the range is not resistant.