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Module
1
–
Homework
Questions
Please
submit
your
answers
to
these
homework
questions
via
the
Coursera
website.
Posh
Nails
Katie
Posh
runs
an
upscale
nail
salon.
The
service
process
includes
five
activities
that
are
conducted
in
the
sequence
described
below.
(The
time
required
for
each
activity
is
shown
in
parentheses):
Activity
1:
Welcome
a
guest.
(1
minute)
Activity
2:
Clip
and
file
nails.
(3
minutes)
Activity
3:
Paint.
(5
minutes)
Activity
4:
Dry.
(10
minutes)
Activity
5:
Check
out
the
customer.
(4
minutes)
Three
servers
(S1,
S2,
and
S3)
offer
the
services
in
a
worker-‐paced
line.
The
assignment
of
tasks
to
servers
is
the
following:
S1
does
Activity
1.
S2
does
Activities
2
and
3.
S3
does
Activities
4
and
5.
The
drying
process
does
not
require
server
3’s
constant
attention;
she/he
needs
to
only
escort
the
customer
to
the
salon’s
drying
chair
(equipped
with
fans
for
drying).
The
time
to
do
this
is
negligible.
There
exists
only
one
drying
chair
in
the
salon.
PN1.
Which
resource
is
the
bottleneck
of
the
process?
PN2.
What
is
the
utilization
of
server
2?
Assume
that
there
is
unlimited
demand
and
that
the
process
only
admits
customers
at
the
rate
of
the
bottleneck.
PN3.
What
is
the
average
labor
utilization
of
the
servers?
Assume
that
there
is
unlimited
demand
and
that
the
process
only
admits
customers
at
the
rate
of
the
bottleneck.
PN4.
Assume
a
wage
rate
of
$12
per
hour.
What
are
the
direct
labor
costs
for
one
customer?
1
Butternut
BN1.
Butternut
is
a
ski
resort
in
Massachusetts.
One
of
their
triple
chair
lifts
unloads
1296
skiers
per
hour
at
the
top
of
the
slope.
(A
triple
chair
lift
can
carry
three
passengers
per
chair.)
The
ride
from
the
bottom
to
the
top
takes
5
minutes.
How
many
skiers
are
riding
on
the
lift
at
any
one
time?
Tech
Co.
Tech
Company
is
a
medium-‐sized
consumer
electronics
retailer.
The
company
reported
$155,000,000
in
revenues
for
2007
and
$110,050,000
in
Costs
of
Goods
Sold
(COGS).
In
the
1
–
Homework
Questions
Please
submit
your
answers
to
these
homework
questions
via
the
Coursera
website.
Posh
Nails
Katie
Posh
runs
an
upscale
nail
salon.
The
service
process
includes
five
activities
that
are
conducted
in
the
sequence
described
below.
(The
time
required
for
each
activity
is
shown
in
parentheses):
Activity
1:
Welcome
a
guest.
(1
minute)
Activity
2:
Clip
and
file
nails.
(3
minutes)
Activity
3:
Paint.
(5
minutes)
Activity
4:
Dry.
(10
minutes)
Activity
5:
Check
out
the
customer.
(4
minutes)
Three
servers
(S1,
S2,
and
S3)
offer
the
services
in
a
worker-‐paced
line.
The
assignment
of
tasks
to
servers
is
the
following:
S1
does
Activity
1.
S2
does
Activities
2
and
3.
S3
does
Activities
4
and
5.
The
drying
process
does
not
require
server
3’s
constant
attention;
she/he
needs
to
only
escort
the
customer
to
the
salon’s
drying
chair
(equipped
with
fans
for
drying).
The
time
to
do
this
is
negligible.
There
exists
only
one
drying
chair
in
the
salon.
PN1.
Which
resource
is
the
bottleneck
of
the
process?
PN2.
What
is
the
utilization
of
server
2?
Assume
that
there
is
unlimited
demand
and
that
the
process
only
admits
customers
at
the
rate
of
the
bottleneck.
PN3.
What
is
the
average
labor
utilization
of
the
servers?
Assume
that
there
is
unlimited
demand
and
that
the
process
only
admits
customers
at
the
rate
of
the
bottleneck.
PN4.
Assume
a
wage
rate
of
$12
per
hour.
What
are
the
direct
labor
costs
for
one
customer?
1
Butternut
BN1.
Butternut
is
a
ski
resort
in
Massachusetts.
One
of
their
triple
chair
lifts
unloads
1296
skiers
per
hour
at
the
top
of
the
slope.
(A
triple
chair
lift
can
carry
three
passengers
per
chair.)
The
ride
from
the
bottom
to
the
top
takes
5
minutes.
How
many
skiers
are
riding
on
the
lift
at
any
one
time?
Tech
Co.
Tech
Company
is
a
medium-‐sized
consumer
electronics
retailer.
The
company
reported
$155,000,000
in
revenues
for
2007
and
$110,050,000
in
Costs
of
Goods
Sold
(COGS).
In
the
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