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Author Question: A 90 confidence interval has a confidence coefficient of z(0.05). What is its value? 1.1.65 ... (Read 84 times)

dmcintosh

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on: Jul 24, 2018
A 90 confidence interval has a confidence coefficient of z(0.05). What is its value?
  1.1.65
  2.1.96
  3.2.33
  4.2.58

Question 2

The goal of a confidence interval for an unknown  is to
  1.capture the sample mean in the interval.
  2.use  as a point estimate in the interval.
  3.start with an unbiased and bound it with some margin of error to estimate .
  4.All of the above are true.


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joanwhite

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

1

Answer to Question 2

3


dmcintosh

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Reply 2 on: Jul 24, 2018
Gracias!

cassie_ragen

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Reply 3 on: Yesterday
Wow, this really help

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