For which type of data are the values arbitrary numbers?

For which type of data are the values arbitrary numbers?
 a. Interval data c. Ordinal data
  b. Nominal data d. None of these choices.

Q. 2

In a multiple regression analysis involving 5 independent variables and 30 observations, SSR = 360 and SSE = 40 . The coefficient of determination is _____.
 a. .80
  b. .90
  c. .25
  d. .15

Q. 3

A waiting line situation where every customer waits in the same line before being served by the same server is called a single server waiting line.
  Indicate whether the statement is true or false

Q. 4

For what type of data are frequencies the only calculations that can be done?
 a. Interval data c. Ordinal data
  b. Nominal data d. None of these choices.

Q. 5

To test for the significance of a regression model involving 8 independent variables and 121 observations, the numerator and denominator degrees of freedom (respectively) for the critical value of F are _____.
 a. 8 and 121
  b. 7 and 120
  c. 8 and 112
  d. 7 and 112

Q. 6

For an M/M/1 queuing system, if the service rate, , is doubled, the average wait in the system, W, is cut in half.
  Indicate whether the statement is true or false

Q. 7

Values must represent ordered rankings for what type of data?
 a. Interval data c. Ordinal data
  b. Nominal data d. None of these choices.