The results of the total test scores of 60 test participants as new employees of a hardware company as following:(image) a. From these data, determine the mean (mean), variance (variance), Quartile-1 (Q1), Quartile-3(Q3) and inter-quartile (IQR) b. Test participants are classified as quite diverse in ability, if the coefficient of diversity (Coefficient of variation) the score value is more than 15%. Based on the test scores, Do participants have various abilities? c. Participants are classified according to the following criteria: Group I: if the score is less than the average value – (0.5 x IQR) Group II: if the score is between average – (0.5 x IQR) to (average + (0.5 x IQR) Group III: if the score is more than the average + (0.5 x IQR) Count the frequency of participants from each group and visualize.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.4: Fractional Expressions
Problem 8E
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The results of the total test scores of 60 test participants as new employees of a hardware company as following:(image)

a. From these data, determine the mean (mean), variance (variance), Quartile-1 (Q1),
Quartile-3(Q3) and inter-quartile (IQR)
b. Test participants are classified as quite diverse in ability, if the coefficient of diversity
(Coefficient of variation) the score value is more than 15%. Based on the test scores,
Do participants have various abilities?
c. Participants are classified according to the following criteria:
Group I: if the score is less than the average value – (0.5 x IQR)
Group II: if the score is between average – (0.5 x IQR) to (average + (0.5 x IQR)
Group III: if the score is more than the average + (0.5 x IQR)
Count the frequency of participants from each group and visualize.
d. The company will continue the interview for participants who have a score of 25%
biggest. What is the participant's score in order to be able to continue the interview stage?

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Transcribed Image Text:120 165 180 200 212 232 120 170 182 200 212 232 125 172 185 200 215 235 130 175 185 202 215 235 140 175 185 205 222 235 145 180 190 205 225 240 145 180 190 205 230 240 150 180 190 205 230 245 160 180 200 210 232 250 160 180 200 210 232 250
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