Fwd: Queuing theory presentation
Sarah Greer
feed back from Rosa.
+ she answered the Po question...
I think it sounds pretty positive!!
and the changes/additions are pretty easy!
Can we tentatively plan to do a JC rehearsal the 16th/17th/18th or 19th at the JC biz school ?
: )
Sarah
From: Oppenheim, Rosa <oppe...@business.rutgers.edu>
Date: Wed, Apr 4, 2012 at 4:08 PM
Subject: RE: Queuing theory presentation
To: Sarah Greer <skgr...@gmail.com>
this looks like it will be very good!
a couple of comments - you are using an M/M/1 and M/M/2 model, but nowhere do you verify that the service time distribution is exponential (or, equivalently, that the time between service completions is Poisson). while your assumption about random arrivals is probably sufficient for assuming the arrival process is poisson (the first M), you probably should be checking that as well. but you definitely need to look at the service time distribution before you can use this model. to verify that arrivals are poisson, you would need to collect data on number of arrivals per unit time and compare that to a Poisson distribution with the same mean. similarly, to verify that service times are exponentially distributed, you would have to collect data on individual service times and compare that distribution to an exponential distribution with the same mean.
as far as the calculation of P0 - first of all, you will have to correct the format - you have P0 in the denominator of the expression, which is incorrect. however,, no real need to calculate P0 - you can use the table in the book (which gives P0 as a function of the ratio of lambda/mu), or you can use the software that comes with the text (and is also on blackboard under the software tab). since we will be determining P0 that way, it will be fine if you do that as well.
you should plan on talking about how you will use the results - what do they say about your standards/your level of operation, what you will do in the future based on these results, etc.
________________________________________
From: Sarah Greer [skgr...@gmail.com]
Sent: Wednesday, April 04, 2012 2:39 PM
To: Oppenheim, Rosa
Subject: Queuing theory presentation
Hi Rosa -
Attached is our preliminary presentation on Queuing Theory - We would appreciate some feed back on it if you don't mind taking the time to check it out.
I am stuck on the double channel Po math - I think Ive done it right, but not 100% sure with the summation part of the formula.
Much thanks for any and all suggestions,
Sarah
Saquiba Syed, M.D.
this is great...awesome job...we can probably attend the rehersal if its on the 16-18th..
xoxo
Clarice Ma
The presentation looks very cute. Since I haven't studied the
mechanics, but based on the experience of the boarding, here is my
take to answer Rosa's question below.
"you should plan on talking about how you will use the results - what
do they say about your standards/your level of operation, what you
will do in the future based on these results, etc."
•The more valuable the service, the longer the customer is willing to
wait. - from PP slide
1. Company have other (6) sister companies - can actually use boat
service staffs to promote other company business while customers are
waiting. Therefore manager can use the queuing theory to pull staff
from their regular service routine inside the boat to greet and
promote other boat service to the customers (time management - staff
needs to also finish duties before boat takes off). Good way to expand
customers base and potential increase of future revenue. Also, by
keeping the customers occupied and involved, they will value the whole
boating experience more positive instead of not much to do while
waiting.
The staff will even receive higher gratuities because of the
additional services performed. So everyone wins, the cruise company,
customers and employees.
2. Will save money and time to unload human waste to inform customers
to use public bathrooms before the boat takes off - not sure how we
can present this idea. But a long run savings will add up.
On Wed, Apr 4, 2012 at 4:37 PM, Sarah Greer <skgr...@gmail.com> wrote:
>