Fifteen students were registered in Section 1 and 15 students were registered in

Question

Fifteen students were registered in Section 1 and 15 students were registered in Section 2 of a research course. They took the same midterm exam, and their exam scores were distributed as follows: Section 1: 89, 56, 45, 78, 98, 45, 55, 77, 88, 99, 98, 97, 54, 34, 94 Section 2: 77, 88, 87, 67, 98, 87, 55, 77, 45, 44, 88, 99, 69, 67, 98 a. Calculate the mode, median, mean, range, variance, and standard deviation for both sections. Include your SPSS output below. b. Which section did better overall on the exam? Fully justify your answer using the concepts in W&G; Chapter 3.

Explanation / Answer

modes 45 ,98

Mean of section 1

Mean of section 1 = 73.8

Median of section 1

Median of section 1 = 78

Range of section 1

Range of section 1 = 65

Standard Deviation of section 1

Standard deviation of section 1 = 23.1739

varance=537.0296

section 2

Modes: 67 77 87 88 98

Mean of section2

Mean of section2 = 76.4

Range of section2

Range of section2 = 55

Median of section2

Median of section2 = 77

Standard Deviation of section2

Standard deviation of section2 = 18.2514

variance =333.1136

b)section 2 do better overall on the exam. since mean of section 2 is high

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