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CLSSBB Leak Questions

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Question 40

A sample of size 50 from machine A has a mean of 18.2 and standard deviation 3.1. A sample of size 40 from machine B has mean 17.6 and standard deviation 2.8. Do these data indicate that the population for machine A has a larger mean? Assume the populations are normal.

Options:

A.

yes

B.

no

Question 41

A population is bimodal. One hundred samples of size 30 are randomly collected and the 100 sample means are calculated. The distribution of these sample means is:

Options:

A.

bimodal

B.

approximately exponential

C.

approximately Poisson

D.

approximately normal

E.

approximately uniform

Question 42

This table displays the inventory of fasteners in a storage cabinet. An item is selected at random from the fastener cabinet.

Find the approximate probability it is larger than 1/2.

Options:

A.

.35

B.

.65

C.

.1106

D.

.47

E.

none of the above

Question 43

A pharmaceutical manufacturer is designing an experiment to test four different capsule ingredients designed to reduce dissolution time. Each ingredient will be tested at 10 milligrams and 40 milligrams. A full factorial design is used with five replications per run. The number of levels, factors and runs is, respectively:

Options:

A.

2, 4, 16

B.

4, 5, 8

C.

10, 4, 40

D.

2, 20, 16

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Exam Code: CLSSBB
Exam Name: Certified Lean Six Sigma Black Belt (CLSSBB)
Last Update: Nov 7, 2024
Questions: 227
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