The class score distribution of schools in a metropolitan area is shown here along with an
analysis output. Comment on the statistical significance between the Means of the two
distributions. Select the most appropriate statement.

A.

The two class Means are statistically different from each other

B.

The two class Means statistically not different from each other

C.

Inadequate information on class Means to make any statistical conclusions

D.

A visual comparison shows that class Means are not statistically different

E.

A visual comparison shows that class Means are statistically different

To properly analyze the variables impacting the output of a process we need to collect data
that represents at least 80% of the variation in the process and assure ourselves we are
collecting data from all three types of variation which are _______________.

A.

Within, Between and Temporal

B.

Within, Between and Temporary

C.

Without, Above and Below

D.

Induced, Natural and Unavoidable

What dollar amount of savings would a project show if it reduced your outstanding
Accounts Receivable by $1.4 million dollars to $5.3 million total and your organization’s
marginal cost of capital was 6.2%?

A.

$43,400

B.

$86,800

C.

$117,500

D.

$328,600

Situations where standardized work needs to be incorporated include all of these except
_____________________.

A.

Changeover instructions incomplete

B.

Lack of a system to assure proper inventory levels at repair stations

C.

Machines continually operating to reduce the labor cost per piece

D.

Process flow for the same product assembly taking various cycle time for completion

Measurement __________ is defined as the difference between the observed and the
expected values for a given set of data.

A.

Breadth

B.

Linearity

C.

Range

D.

Bias

For her injection molding project a Belt needed to track the percentage of defectives of a
particular sample set so she used a ___________ to display the data?

A.

Individual Chart

B.

C Chart

C.

Xbar Chart

D.

P Chart

Those people who have a interest in the outputs of a process are known as
_____________________.

A.

Stakeholders

B.

Senior management

C.

Co-workers

D.

Process owners

A Full Factorial experiment using a 2 level 4 factor approach has been proposed to test the
viability of an extrusion machine experiment. How many treatment combinations will this
approach involve?

A.

8

B.

16

C.

32

D.

64

The Normal Distribution is considered to be the most important distribution in statistics and,
among other things is defined as having a total area under the curve of 1, is mounded and
symmetrical and the Mean, Median and Mode are _____________.

A.

All evenly divisible by 3

B.

Twice the Standard Deviation

C.

Within 10% of each other

D.

The same number

Statistical Difference is the magnitude of difference or change required to distinguish
between a true difference, brought about by change or improvement, and one that could
have occurred by chance.

A.

True

B.

False