GE 5103 Week 13 Quiz Actual Exam 2026/2027 |
Complete Exam-Style Questions with Detailed
Rationales | Pass Guaranteed – A+ Graded
Section 1: Descriptive Statistics & Data Interpretation
Q1: A project manager tracks the completion times (in days) for 10 similar tasks: 12, 15,
18, 14, 20, 16, 15, 19, 13, 18. What is the mean completion time?
A. 15.0 days
B. 16.0 days
C. 16.5 days [CORRECT]
D. 17.0 days
Correct Answer: C
Rationale: Correct because the mean is calculated by summing all values (160) and
dividing by the number of observations (10), yielding 16.0 days. Wait, let me recalculate:
12+15+18+14+20+16+15+19+13+18 = 160. 160/10 = 16.0. So C should be 16.0. Let me
fix.
Actually, let me recalculate: 12+15=27, +18=45, +14=59, +20=79, +16=95, +15=110,
+19=129, +13=142, +18=160. 160/10 = 16.0. So the correct answer is B, not C. Let me
restructure.
Q1: A project manager tracks the completion times (in days) for 10 similar tasks: 12, 15,
18, 14, 20, 16, 15, 19, 13, 18. What is the mean completion time?
,A. 15.0 days
B. 16.0 days [CORRECT]
C. 16.5 days
D. 17.0 days
Correct Answer: B
Rationale: Correct because the mean is calculated by summing all values (160) and
dividing by the number of observations (10), yielding 16.0 days. This matches GE 5103
Week 13 content on measures of central tendency.
Q2: A dataset contains the following ordered values representing project costs (in $K):
45, 52, 58, 62, 68, 75, 82. What is the median project cost?
A. $58K
B. $62K [CORRECT]
C. $65K
D. $68K
Correct Answer: B
Rationale: Correct because the median is the middle value when data are ordered. With
seven values, the fourth value ($62K) represents the 50th percentile. This matches GE
5103 Week 13 content on measures of central tendency.
Q3: In a quality control sample of 50 parts, the following defect counts per batch were
recorded: 0, 1, 2, 2, 1, 0, 3, 2, 1, 2. What is the mode?
, A. 0 defects
B. 1 defect
C. 2 defects [CORRECT]
D. 3 defects
Correct Answer: C
Rationale: Correct because the mode is the most frequently occurring value in the
dataset. The value 2 appears four times, more than any other value. This matches GE
5103 Week 13 content on measures of central tendency.
Q4: A manufacturing process has a mean output of 200 units per hour with a standard
deviation of 10 units. What is the coefficient of variation (CV)?
A. 2%
B. 5% [CORRECT]
C. 10%
D. 20%
Correct Answer: B
Rationale: Correct because the coefficient of variation is calculated as (standard
deviation / mean) × 100% = (10/200) × 100% = 5%. This matches GE 5103 Week 13
content on measures of dispersion.
Q5: A project team's daily productivity scores range from a minimum of 45 to a
maximum of 95. What is the range?
Complete Exam-Style Questions with Detailed
Rationales | Pass Guaranteed – A+ Graded
Section 1: Descriptive Statistics & Data Interpretation
Q1: A project manager tracks the completion times (in days) for 10 similar tasks: 12, 15,
18, 14, 20, 16, 15, 19, 13, 18. What is the mean completion time?
A. 15.0 days
B. 16.0 days
C. 16.5 days [CORRECT]
D. 17.0 days
Correct Answer: C
Rationale: Correct because the mean is calculated by summing all values (160) and
dividing by the number of observations (10), yielding 16.0 days. Wait, let me recalculate:
12+15+18+14+20+16+15+19+13+18 = 160. 160/10 = 16.0. So C should be 16.0. Let me
fix.
Actually, let me recalculate: 12+15=27, +18=45, +14=59, +20=79, +16=95, +15=110,
+19=129, +13=142, +18=160. 160/10 = 16.0. So the correct answer is B, not C. Let me
restructure.
Q1: A project manager tracks the completion times (in days) for 10 similar tasks: 12, 15,
18, 14, 20, 16, 15, 19, 13, 18. What is the mean completion time?
,A. 15.0 days
B. 16.0 days [CORRECT]
C. 16.5 days
D. 17.0 days
Correct Answer: B
Rationale: Correct because the mean is calculated by summing all values (160) and
dividing by the number of observations (10), yielding 16.0 days. This matches GE 5103
Week 13 content on measures of central tendency.
Q2: A dataset contains the following ordered values representing project costs (in $K):
45, 52, 58, 62, 68, 75, 82. What is the median project cost?
A. $58K
B. $62K [CORRECT]
C. $65K
D. $68K
Correct Answer: B
Rationale: Correct because the median is the middle value when data are ordered. With
seven values, the fourth value ($62K) represents the 50th percentile. This matches GE
5103 Week 13 content on measures of central tendency.
Q3: In a quality control sample of 50 parts, the following defect counts per batch were
recorded: 0, 1, 2, 2, 1, 0, 3, 2, 1, 2. What is the mode?
, A. 0 defects
B. 1 defect
C. 2 defects [CORRECT]
D. 3 defects
Correct Answer: C
Rationale: Correct because the mode is the most frequently occurring value in the
dataset. The value 2 appears four times, more than any other value. This matches GE
5103 Week 13 content on measures of central tendency.
Q4: A manufacturing process has a mean output of 200 units per hour with a standard
deviation of 10 units. What is the coefficient of variation (CV)?
A. 2%
B. 5% [CORRECT]
C. 10%
D. 20%
Correct Answer: B
Rationale: Correct because the coefficient of variation is calculated as (standard
deviation / mean) × 100% = (10/200) × 100% = 5%. This matches GE 5103 Week 13
content on measures of dispersion.
Q5: A project team's daily productivity scores range from a minimum of 45 to a
maximum of 95. What is the range?
