Question 1

Which of these is Discrete data?

Options :

A : Train arrived at 4:17 pm.

B : Race car consumed 23 gallons of fuel.

C : Of the 42 people on the bus, 12 went into the station.

D : It took 3 hours and 32 minutes to complete the marathon.

Answer: C

Question 2

Due to excessive pollution, GREEN Solutions Inc. is considering subsidizing public transportation to

work for its employees. According to the manager it takes an average weekday commute of 39

minutes with a Standard Deviation of 7 minutes for the employees to get to work while they use

their personal vehicles for their office commute while the management set a policy of not more than

40 minutes for their daily one-way commute. A survey conducted one day on 70 employees showed

an average of 34 minutes commuting time using the metro public transportation system with a

Standard Deviation of 21 minutes. Assuming a Normal Distribution for the commute times by either

personal or public transportation, which of these is true?

Options :

A : The probability that they would arrive on time using personal vehicles is much higher than using the metro public transportation system (MPTS)

B : The probability that they would arrive on time using the MPTS is much higher than using their personal vehicles

C : The two probabilities are about the same excepting in one case the consistency is higher than the other

D : We need to compile more data around weekends to incorporate for traffic differences

E : When Standard Deviation is higher the probability goes down and so the MPTS is worse

Answer: B

Question 3

For the data shown here a Belt suspects the three grades are supplying the same results. Which

statement(s) are true for proper Hypothesis Testing?

Options :

A : The most appropriate Central Tendency to test is the Means

B : An appropriate test to test Central Tendency is the Levene’s test

C : An appropriate test to test Central Tendency is the ANOVA test

D : An appropriate test to test Central Tendency is the Mood’s Median test

Answer: D

Question 4

A Stable process is a process whose output is consistent over time. A primary tool used to analyze

Stability would be a ________________.

Options :

A : Data Forward Plot

B : Bag Plot

C : Min/Max Plot

D : Time Series Plot

Answer: D

Question 5

When a Belt applies the practice of Poka-Yoke to a project challenge she is attempting to make

certain the activity is _______________ .

Options :

A : Well documented

B : Removed from the line

C : Mistake proofed

D : Highly visible

Answer: C

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