CH3202 Quiz 1
Authored by Dr. Lee
Chemistry
Professional Development
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
◦Set of results appears to differ unreasonably from the others in the set called a/an ________________________.
Standard Deviation
Outlier
Mean
Accuracy
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
◦What are the two (2) types of ISO recommended test for outlier detection?
Grubb's Test
Repeatability Test
Dixon's Test
Reproducibility Test
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
◦What are the sample size for Grubb’s test (G-test)?
3 to 7
7 to 10
4 to 7
3 to 10
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the sample size for Dixon’s test (Q-test)?
3 to 7
3 to 10
7 to 10
4 to 7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
◦The following values were obtained for nitrate concentration (mg/L) in a sample of pond water:
◦
0.580 0.607 0.527 0.598 0.480 0.538 0.554 0.570
What test(s) should we use for outlier detection?
Repeatability Test
Grubb's Test
Dixon's Test
Reproducibility test
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
◦The following values were obtained for nitrate concentration (mg/L) in a sample of pond water:
◦
0.580 0.607 0.480 0.538 0.554 0.570
What test(s) should we use for outlier detection?
Grubb's Test
Repeatability Test
Dixon's Test
Reproducibility Test
7.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
◦The data below give the values of fasting glucose concentration (mmol/L) of the blood of volunteers.
◦
4.1 4.5 6.5 5.2 5.5
Identify if 6.5 mmol/L is an outlier? Show your working on paper.
Given mean = 5.16 and standard deviation = 0.9317
Yes
No
Not sure
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