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Author Question: Two conditions are required to test a claim about two population standard deviations. What are they? ... (Read 163 times)

penza

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on: Jul 24, 2018
Two conditions are required to test a claim about two population standard deviations. What are they?
 
  A) The samples are independent and the population is normal.
  B) The samples are mutually exclusive and the population is normal.
  C) The samples are independent and the populations are randomly selected.
  D) The samples are mutually exclusive and the population are randomly selected.

Question 2

Find the standardized test statistic, z, to test the hypothesis that p1 ? p2. Use a = 0.02. The sample statistics listed below are from independent samples. Sample statistics: n1 = 1000, x1 = 250, and n2 = 1200, x2 = 195
 
  A) 5.087 B) 2.798 C) 4.761 D) 3.212


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juiceman1987

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Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

A


penza

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Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)

patma1981

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Reply 3 on: Yesterday
Wow, this really help

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