A contractor's project being analyzed by PERT has an estimated time for the critical path of $120$ days. The sum of all activity variances is $81$; the sum of variances along the critical path is $64.$ What is the probability that the project will take $130$ or more days to complete?

Question $1$ options:

A$)$

$0\mathrm{.}1057$

B$)$

$0\mathrm{.}1335$

C$)$

$0\mathrm{.}8512$

D$)$

$0\mathrm{.}8943$

E$)$

$1\mathrm{.}29$

Question $2(1$ point$)$

Saved

In order to have a career in operations management, one must have a degree in statistics or quantitative methods.

Question $2$ options:

A$)$

TRUE

B$)$

FALSE

Question $3(1$ point$)$

Saved

A fundamental distinction between trend projection and linear regression is that:

Question $3$ options:

A$)$

trend projection uses least squares while linear regression does not.

B$)$

only linear regression can have a negative slope.

C$)$

in trend projection the independent variable is time; in linear regression the independent variable need not be time, but can be any variable with explanatory power.

D$)$

trend projection can be a function of several variables, while linear regression can only be a function of one variable.

E$)$

trend projection uses two smoothing constants, not just one.

Question $4(1$ point$)$

PERT, but not CPM$,$ has the ability to consider the precedence relationships in a project.

Question $4$ options:

A$)$

TRUE

B$)$

FALSE

Question $5(1$ point$)$

Cost cutting in international operations can take place because of:

Question $5$ options:

A$)$

less stringent regulations

B$)$

lower taxes and tariffs

C$)$

lower wage scales.

D$)$

lower indirect costs.

E$)$

all of the above.

Question $6(1$ point$)$

Operations management is applicable:

Question $6$ options:

A$)$

mostly to the service sector.

B$)$

to all firms, whether manufacturing or service.

C$)$

to services exclusively

D$)$

mostly to the manufacturing sector

E$)$

to the manufacturing sector exclusively

Question $7(1$ point$)$

Forecasts may be influenced by a product's position in its life cycle.

Question $7$ options:

A$)$

TRUE

B$)$

FALSE