A sample of 400 observations will be taken from an infinite ...

[WWatsford]

A sample of 400 observations will be taken from an infinite population. The population proportion equals 0.8 . The probability that the sample proportion will be greater than 0.83 is
 a. 0.4332
   b. 0.9332
   c. 0.0668
   d. 0.5668

Question 2

A multiple regression model has the estimated form y = 5 + 6x + 7w As x increases by 1 unit (holding w constant), y is expected to
 a. increase by 11 units.
  b. decrease by 11 units.
  c. increase by 6 units.
  d. decrease by 6 units.

[strudel15]

Answer to Question 1

c

Answer to Question 2

c

[WWatsford]

Excellent

[epscape]

Gracias!