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Author Question: Referring again to Stella's situation in Question 15, if Stella wishes to increase the total ... (Read 139 times)

lunatika

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  • Posts: 548
on: Jun 29, 2018
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


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wuly

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Reply #1 on: Jun 29, 2018
Answer to Question 1

D

Answer to Question 2

C


lunatika

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  • Posts: 548
Reply 2 on: Jun 29, 2018
Great answer, keep it coming :)

upturnedfurball

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Reply 3 on: Yesterday
Wow, this really help

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