3. Samples of students pursuing degrees in the following programs were obtained:

Question

3. Samples of students pursuing degrees in the following programs were obtained: Engineering, Social sciences, Medical and Information Technology Each student yielded the number of units the student was currently taking 16 14 15 12 14 13 18 10 15 16 12 16 17 15 16 20 12 14 14 16 19 18 23 12 10 12 16 14 13 For these data: a. Calculate each i to one decimal place. b. Calculate each s2 to one decimal place. c. State the value of each n. d. Compute s to two decimal places. e. Compute x to one decimal place.

Explanation / Answer

Engineer Social Science Medical Information technology 12 16 18 20 14 14 10 12 10 15 15 14 12 12 16 14 16 14 12 16 14 13 16 19 13 17 18 15 23 16 mean(x bar) 13 14 15 17 standard deviation(s) 1.9 1.4 2.5 3.7 sample variance(s^2) 3.7 2.0 6.3 13.4 sampe size(n) 7 6 9 8 xbarbar 14.75 pooled sample variance (sp^2) 8.33

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