In a recent report to the supply-chain manager in a major electronics company, the report writer ...

In a recent report to the supply-chain manager in a major electronics company, the report writer stated that with 90 percent confidence, the manufacturing lead time for a critical part is between 3.34 hours and 4.14 hours.
 
  Based on this information, the margin of error for this estimate is .80 hours. Indicate whether the statement is true or false

Q. 2

An electronics repair shop has determined that the time between failures for a particular electronic component part is exponentially distributed with a mean time between failures of 200 hours.
 
  Based on this information, the probability that a part will not fail in the first 200 hours is 0.50. Indicate whether the statement is true or false

Q. 3

Which of the following criteria represents the dollar amount of change in the value of the firm as a result of choosing a decision?
 
  A) net present value
  B) payback period
  C) return on investment
  D) internal rate of return

Q. 4

Which of the following is the most frequently used measure of variation?
 
  A) The range
  B) The standard deviation
  C) The variance
  D) The mode

Q. 5

Whenever a constraint has negative slack, the shadow price is zero.
 
  Indicate whether the statement is true or false

Q. 6

For the data given above, determine the regression equation.
 
  A) y = 377.14x + 3,813.33
  B) y = 3,813.33x + 377.14
  C) y = 3,813.33x - 377.14
  D) y = 377.14x - 3,813.33

Q. 7

Which of the following best defines payback period?
 
  A) It is the number of time periods before the cash inflows of a proposed project exceed the amount of the initial investment.
  B) It is the number of time periods before the amount of the initial investment exceeds the cash inflows of a proposed project.
  C) It is the number of time periods before the cash inflows of a proposed project equal the amount of the initial investment.
  D) It is the number of time periods before the net expenditure exceeds the amount of the initial investment.

Q. 8

For a normal distribution, as  changes, ________.
 
  A) the density of the function increases
  B) the median remains unchanged
  C) the distribution becomes wider
  D) the location of the distribution on the x-axis changes