This Question: 1 pt 5of36(0completo) ? The following data represent exam scores

Question

This Question: 1 pt 5of36(0completo) ? The following data represent exam scores in a statistics class taught using traditional lecture and a class taught using a "mipped" clasaroom. Compilete pars (a) through (c) below Traditional70.1 68.5 804 676 86.6 793 56.6 81.3 808 72.3 84.5 699 60.4 764 TOB 625 713 775 92.7 790 7.3 81.8 71.3907 772 77. Flipped (a) Which course has more dispersion in exam soores using the range as the measure of dispersion? The tradtional course has arage ofDwnie te-ripper cone has a range or?T- ?| course has more dispersion. Type integers or decimals. Do not round) b) Which course has more dispersion in exam scores using the sample standard deviation as the measure of dispersion? The traditional course has a standand deviation ofwhile the Tipped" course has a standard deviation ofThe course has more dispersion (Round to three decimal places as needed.) (c) Suppose the score of 60.4 in the traditional oourse was inoorrectly recorded as 604 How does tis affect the range? The range is now (Type an integer or a decimal.Do not round How does this afect the standard deviation? The standard devatoris now Round to three decimal places as needed) What property does tis Bustrate? O A. The range is resistant, but the standard devation is not resistant OB. Both the rargo ard the standard deviation are restant ? c. The standard devoton is resstant but the range is not resistant D. Neither the ranoe nor the standand deviation is resistant Click to select your answers)

Explanation / Answer

Result:

Descriptive statistics

Traditional

Flipped

count

13

13

mean

72.092

77.354

sample standard deviation

9.145

8.031

sample variance

83.634

64.501

minimum

55.5

62.5

maximum

86.6

92.7

range

31.1

30.2

a). Traditional course has a range of 31.1, while flipped course has a range of 30.2.

The Traditional course has more dispersion.

b).

Traditional course has a standard deviation of 9.145, while flipped course has a standard deviation of 8.031.

The Traditional course has more dispersion

c).

Descriptive statistics

Traditional

count

13

mean

113.908

sample standard deviation

147.496

sample variance

21,755.154

minimum

55.5

maximum

604

range

548.5

The range is now 548.5

The standard deviation now is 147.496

D. Neither the range nor the standard deviation is resistant.

Descriptive statistics

Traditional

Flipped

count

13

13

mean

72.092

77.354

sample standard deviation

9.145

8.031

sample variance

83.634

64.501

minimum

55.5

62.5

maximum

86.6

92.7

range

31.1

30.2

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