Referring again to Stella's situation in Question 15, if Stella ...

[lunatika]

Referring again to Stella's situation in Question 15, if Stella wishes to increase the total precision to 5, how many observations are needed?
 a. 8
  b. 54
  c. 48
  d. 96
  e. 24

Question 2

Stella would like to determine the amount of the average purchase at her software store with a total precision of 10 and at a 95 confidence level. Given a historical average purchase variance of 150, what sample size does Stella need?
 a. 2
  b. 12
  c. 24
  d. 30
  e. 8

[wuly]

Answer to Question 1

D

Answer to Question 2

C

[lunatika]

Excellent

[nguyenhoanhat]

TYSM