Statistics and Probability

A chi-square test is not appropriate if:

A chi-square test is not appropriate if:

A chi-square test is not appropriate if:

A. There are more than five levels of one of the variables
 B. The observed frequency in any cell is 0
 C. The distribution of scores is not normal
 D. The expected frequency in any c

e   221   1 Reply

bio_man

A 3 3 contingency table has two cells for which the expected frequency is 4 What test should be use

A 3 3 contingency table has two cells for which the expected frequency is 4 What test should be use

A 3 3 contingency table has two cells for which the expected frequency is 4. What test should be used?

A. Chi-square test with Yates correction
 B. Pearson’s chi-square test
 C. Chi-square goodness of fit test
 D. Fisher’s e

e   135   1 Reply

bio_man

where do we expect a number of jobs to fall most of the time

where do we expect a number of jobs to fall most of the time

A small computer center has found that the number of jobs submitted per day to its computers has a mean of 65 jobs and a standard deviation of 7 where do we expect a number of jobs per day to fall most of the time (95.4%)?

Hcrutcher2017   145   3 Replies

bio_man

The relationship between MAD and Se is a.seMAD=1.25. b.se=1.25MAD. c.se=1.25/MAD. d.1.25se=MAD.

The relationship between MAD and Se is a.seMAD=1.25. b.se=1.25MAD. c.se=1.25/MAD. d.1.25se=MAD.

The relationship between MAD and Se is
  a.seMAD=1.25.
  b.se=1.25MAD.
  c.se=1.25/MAD.
  d.1.25se=MAD.

k123p   97   1 Reply

Fvhdan

If the value of that minimizes MAD exceeds ________ then simple exponential smoothing is not a ...

If the value of that minimizes MAD exceeds ________ then simple exponential smoothing is not a ...

If the value of  that minimizes MAD exceeds ________ then simple exponential smoothing is not a recommended forecast technique.
  a.0.1
  b.0.7
  c.0.9
  d.0.5

strobro   78   1 Reply

WillGross3

What is the range of ?

What is the range of ?

What is the range of ?
  a.0 <  < 2
  b.1 <

arichman7730   81   1 Reply

alarose

Percentage error is a.. b.. c.. d..

Percentage error is a.. b.. c.. d..

Percentage error is
  a..
  b.

alexisblack   81   1 Reply

wping

The RISK function that creates correlated variables is a.RISKCORR. b.RISKCORRMAT. ...

The RISK function that creates correlated variables is a.RISKCORR. b.RISKCORRMAT. ...

The RISK function that creates correlated variables is
  a.RISKCORR.
  b.RISKCORRMAT.
  c.RISKCORRELATEMAT.
  d.RISKCORRELATE.

Brutusandmoose   98   1 Reply

WillGross3

A series system functions only as long as a.at least one machine functions. b.each machine ...

A series system functions only as long as a.at least one machine functions. b.each machine ...

A series system functions only as long as
  a.at least one machine functions.
  b.each machine functions.
  c.at most one machine functions.
  d.at most one machine does not function.

cmsx27   101   1 Reply

somedaysunday

The PERT distribution is related to the ________ distribution.

The PERT distribution is related to the ________ distribution.

The PERT distribution is related to the ________ distribution.
  a.normal
  b.general
  c.Weibull
  d.triangular

littlej_dvine   110   1 Reply

Bflint101

Which model uses the RISKTRIANG function?

Which model uses the RISKTRIANG function?

Which model uses the RISKTRIANG function?
  a.reliability
  b.modeling cash flow from a new product
  c.project scheduling
  d.news vendor problem

jldobro   91   1 Reply

wping

Which is not an RISK function?

Which is not an RISK function?

Which is not an RISK function?
  a.RISKDISCRETE
  b.RISKNORMAL
  c.RISKGENER
  d.RISKTRIANG

everlyn85   96   1 Reply

irina99

If we know the mean and standard deviation of service times we can find the shape parameter, k, of ...

If we know the mean and standard deviation of service times we can find the shape parameter, k, of ...

If we know the mean and standard deviation of service times we can find the shape parameter, k, of the Erlang distribution by computing
  a.

lingo   99   1 Reply

sweetpeajezzy

If only 30 of the customers move from server 1 to server 2, which dialog box will reflect this fact? ...

If only 30 of the customers move from server 1 to server 2, which dialog box will reflect this fact? ...

If only 30 of the customers move from server 1 to server 2, which dialog box will reflect this fact?
  a.Options
  b.Resource
  c.Percentage Routing
  d.Activity

love2211   95   1 Reply

Gavaacon

When creating a series system, which is not a change that must be made to the M/M/1 system? ...

When creating a series system, which is not a change that must be made to the M/M/1 system? ...

When creating a series system, which is not a change that must be made to the M/M/1 system?
  a.Insure that 100 of all customers must receive service at each task.
  b.Create a process rectangle for each task in the series system.
  c.

CTaustin   88   1 Reply

irina99

To change from an M/M/1 queue to an M/M/2 queue, which option on the Activity dialog box is ...

To change from an M/M/1 queue to an M/M/2 queue, which option on the Activity dialog box is ...

To change from an M/M/1 queue to an M/M/2 queue, which option on the Activity dialog box is modified?
  a.capacity
  b.Output Queue Capacity
  c.Input Queue Capacity
  d.time

ejohnson3310   92   1 Reply

suarezs1

Which measure is not tracked on-screen?

Which measure is not tracked on-screen?

Which measure is not tracked on-screen?
  a.Value Added Time
  b.quantity processed
  c.Waiting time
  d.Cycle Time

Theleeman   124   1 Reply

vbass

In an M/M/1 queue service times are a.Erlang. b.normal. c.exponential. d.Poisson.

In an M/M/1 queue service times are a.Erlang. b.normal. c.exponential. d.Poisson.

In an M/M/1 queue service times are
  a.Erlang.
  b.normal.
  c.exponential.
  d.Poisson.

alexisblack   124   1 Reply

JMENDEZ

Which is not a simulation language?

Which is not a simulation language?

Which is not a simulation language?
  a.SLAM
  b.GPSS
  c.GASP
  d.GRSP

Haydena   103   1 Reply

kimmaz

Statistical analysis is performed on simulation models to determine a.the warm-up period. b.the ...

Statistical analysis is performed on simulation models to determine a.the warm-up period. b.the ...

Statistical analysis is performed on simulation models to determine
  a.the warm-up period.
  b.the level of autocorrelation.
  c.the confidence interval.
  d.the steady-state level.

gracehiller11   108   1 Reply

vbass

The basic distribution in random number generation is a.Poisson(4). b.U(0,1). c.Normal(0,1). ...

The basic distribution in random number generation is a.Poisson(4). b.U(0,1). c.Normal(0,1). ...

The basic distribution in random number generation is
  a.Poisson(4).
  b.U(0,1).
  c.Normal(0,1).
  d.Exponential(1).

CTaustin   106   2 Replies

CTaustin

A simulation that contains one or more random variables is called a ________ simulation. ...

A simulation that contains one or more random variables is called a ________ simulation. ...

A simulation that contains one or more random variables is called a ________ simulation.
  a.deterministic
  b.stochastic
  c.static
  d.deterministic

stroman54   118   1 Reply

WillGross3

Which is not a term used in simulation?

Which is not a term used in simulation?

Which is not a term used in simulation?
  a.state variables
  b.system
  c.entity
  d.noninteger program

slapaburger   104   1 Reply

Macdonaldc

When the parameters defining the queuing system vary over time, the system is a.open. b.blocked. ...

When the parameters defining the queuing system vary over time, the system is a.open. b.blocked. ...

When the parameters defining the queuing system vary over time, the system is
  a.open.
  b.blocked.
  c.FCFS.
  d.nonstationary.

RENCEE72   97   1 Reply

Bubbbles

In a closed queuing network a.there are no steady state probabilities. b.there is a unique ...

In a closed queuing network a.there are no steady state probabilities. b.there is a unique ...

In a closed queuing network
  a.there are no steady state probabilities.
  b.there is a unique solution for Pij, the probability that a job will travel from server i to server j.
  c.there is a variable number of jobs in the

jldobro   109   1 Reply

Bubbbles

In an M/G/s/GD/s/ system Wq = a.0. b.. c.W. d.Ws.

In an M/G/s/GD/s/ system Wq = a.0. b.. c.W. d.Ws.

In an M/G/s/GD/s/ system Wq =
  a.0.
  b..
  c.W.
  d.Ws.

LRotundo   61   2 Replies

LRotundo

A k-stage series queuing system will blow up if

A k-stage series queuing system will blow up if

A k-stage series queuing system will blow up if
  a. for some j=1, 2, ..., k..
  b.

Skoochy   68   1 Reply

Kojico

The main difference between an M/M/1/GD// and an M/M/1/GD/c/ queuing system is a.W will be larger ...

The main difference between an M/M/1/GD// and an M/M/1/GD/c/ queuing system is a.W will be larger ...

The main difference between an M/M/1/GD// and an M/M/1/GD/c/

jldobro   67   1 Reply

sophiakhalid12

If for a queue that achieves steady state, then Lq = a.1/3 b.1/6 c.1/2 d.1/9

If for a queue that achieves steady state, then Lq = a.1/3 b.1/6 c.1/2 d.1/9

If  for a queue that achieves steady state, then Lq =
  a.1/3
  b.1/6
  c.1/2
  d.1/9

ANP2202   71   1 Reply

lsellers6

Which is not a queue discipline?

Which is not a queue discipline?

Which is not a queue discipline?
  a.FCFS
  b.SIRO
  c.LCFS
  d.FIRO

arichman7730   74   1 Reply

DCAV1

Which question cannot be answered by queuing theory?

Which question cannot be answered by queuing theory?

Which question cannot be answered by queuing theory?
  a.What fraction of time is each server idle?
  b.What is the probability distribution of a customer's waiting time?
  c.What is the expected number of customers that leave the queu

alexisblack   71   1 Reply

umass508

Problems in which the decision maker can terminate the problem by choosing a particular action are ...

Problems in which the decision maker can terminate the problem by choosing a particular action are ...

Problems in which the decision maker can terminate the problem by choosing a particular action are called
  a.completion early problems.
  b.ending action problems.
  c.terminating stage problems.
  d.stopping rule problems.

cmsx27   77   1 Reply

wping

If a favorable event occurs we assign a reward of a.2. b.0. c.1. d.1.

If a favorable event occurs we assign a reward of a.2. b.0. c.1. d.1.

If a favorable event occurs we assign a reward of
  a.2.
  b.0.
  c.1.
  d.1.

sdaggy1   66   1 Reply

Macdonaldc

PDP stands for a.probabilistic dynamic programming. b.portrayed dynamic programming. c.possible ...

PDP stands for a.probabilistic dynamic programming. b.portrayed dynamic programming. c.possible ...

PDP stands for
  a.probabilistic dynamic programming.
  b.portrayed dynamic programming.
  c.possible dynamic programming.
  d.probability dynamic programming.

fundai!   101   1 Reply

gomeza

The program that solves DP recursions is called a.LINGO. b.LINDO. c.no dynamic programming ...

The program that solves DP recursions is called a.LINGO. b.LINDO. c.no dynamic programming ...

The program that solves DP recursions is called
  a.LINGO.
  b.LINDO.
  c.no dynamic programming computer package exists.
  d.Excel Solver.

bribery   87   1 Reply

Bflint101

Which is not a description of the dynamic lot-size model?

Which is not a description of the dynamic lot-size model?

Which is not a description of the dynamic lot-size model?
  a.There is a limit on ci.
  b.Demand for period t must be met on time.
  c.Demand dt is know at the beginning of period t.
  d.There is no limit on

NERD   71   1 Reply

JMENDEZ

Which is not an aspect of recursion?

Which is not an aspect of recursion?

Which is not an aspect of recursion?
  a.We must specify how to best move from stage t to stage t+1.
  b.We must specify how the state at stage t+1 depends on the value of t, the state at stage t and the decision chosen at stage t.
  c

kate lynn   76   1 Reply

whitneyracquel

Equipment replacement problems a.determine how often equipment should be repaired. b.determine how ...

Equipment replacement problems a.determine how often equipment should be repaired. b.determine how ...

Equipment replacement problems
  a.determine how often equipment should be repaired.
  b.determine how a machine should be recycled.
  c.determine how a machine should be repaired.
  d.determine how long a machine should be utiliz

rgasio   88   1 Reply

Kojico

In the resource-allocation problem the benefit obtained from more than one activity is a.the ratio ...

In the resource-allocation problem the benefit obtained from more than one activity is a.the ratio ...

In the resource-allocation problem the benefit obtained from more than one activity is
  a.the ratio of the benefits obtained from the individual activities.
  b.the quotient of the benefits obtained from the individual activities.
  c

Haydena   86   2 Replies

Haydena

Which is not a characteristic of dynamic programming?

Which is not a characteristic of dynamic programming?

Which is not a characteristic of dynamic programming?
  a.The decision at any stage is independent of the other stages.
  b.Each stage has a number of states associated with it.
  c.A problem can be divided into stages with a decision

Nalu   57   1 Reply

al