A bank manager wishes to estimate the mean waiting time spent by ...

[SO00]

A bank manager wishes to estimate the mean waiting time spent by customers at his bank. He knows from previous experience that the standard deviation is about 4.0 minutes.
 
  If he desires a 90 percent confidence interval estimate and wishes to have a margin of error of 1 minute, the required sample size will be approximately 143. Indicate whether the statement is true or false

Question 2

A mixed integer linear optimization model differs from a nonlinear optimization model in that the mixed integer linear optimization model ________.
 
  A) contains terms that cannot be written as constant times a variable
  B) is considerably more difficult to solve than the nonlinear optimization model
  C) uses equalities and inequalities to describe constraints in the business decision problem
  D) contains only a subset of variables that are restricted to being integers while others are continuous

[Perkypinki]

Answer to Question 1

FALSE

Answer to Question 2

D

[SO00]

Gracias!

[ghepp]

Excellent