To properly interpret dual prices, one must know how costs were ...

[fahad]

To properly interpret dual prices, one must know how costs were allocated in the objective function.
  Indicate whether the statement is true or false

Question 2

At a local university, a sample of 49 evening students was selected in order to determine whether the average age of the evening students is significantly different from 21 . The average age of the students in the sample was 23 years. The population standard deviation is known to be 3.5 years. Determine whether or not the average age of the evening students is significantly different from 21 . Use a .1 level of significance.

[Sophiapenny]

Answer to Question 1

T

Answer to Question 2

H0:  = 21
Ha:   21 z = 4; therefore, reject H0 . There is sufficient evidence at a = .1 to conclude that the average age of the evening students is significantly different from 21.

[fahad]

Great answer, keep it coming

[diana chang]

Gracias!