19. Exam Scores The following data represent exam scores in a statistics class taught using traditional lecture and a class taught using a "flipped" classroom. The "flipped" classroom is one where the content is delivered via video and watched at home , while class time is used for homework and activities. Traditional 70.869.179.467.685.378.256.2 81.380.971.563.7 69.8 59.8 Flipped76.471.663.4 72.4 77.9 91.8 78.9 76.882.170.2 91.5 77.8 76.5 Source: Michael Sullivan ( a) Which course has more dispersion in exam scores using the range as the measure of dispersion ? ( b) Which course has more dispersion in exam scores using the standard deviation as the measure of dispersion? ( ) Suppose the score of 59.8 in the traditional course was incorrectly recorded as 598. How does this affect the range? the standard deviation ? What property does this illustrate?

DATA 19. Exam Scores The following data represent exam scores in a statistics class taught using traditional lecture and a class taught using a "flipped" classroom. The "flipped" classroom is one where the content is delivered via video and watched at home, while class time is used for homework and activities. Traditional 70.8 69.1 79.4 67.6 85.3 78.2 56.2 81.3 80.9 71.5 63.7 69.8 59.8 Flipped 76.4 71.6 63.4 72.4 77.9 91.8 78.9 76.8 82.1 70.2 91.5 77.8 76.5 Source: Michael Sullivan. (a) Which course has more dispersion in exam scores using the range as the measure of dispersion? (b) Which course has more dispersion in exam scores using the standard deviation as the measure of dispersion? (c) Suppose the score of 59.8 in the traditional course was incorrectly recorded as 598. How does this affect the range? the standard deviation? What property does this illustrate