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Author Question: Give a careful verbal interpretation of the 95 confidence interval for the long-run proportion of ... (Read 53 times)

Shelles

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on: Jun 24, 2018
Give a careful verbal interpretation of the 95 confidence interval for the long-run proportion of new product placements.
 
  What will be an ideal response?

Question 2

A contingency table is to be used to test for independence. There are 3 rows and 3 columns in the table. How many degrees of freedom are associated with this test?
 
  A) 9
  B) 6
  C) 4
  D) 2


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jliusyl

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

We are 95 confident that the true long run proportion of new product placements is in the interval (0.414, 0.502). By 95 confident we mean that if this experiment is conducted several times and a confidence interval is calculated for each trial, we expect 95 of them to include the true long run proportion.

Answer to Question 2

C


Shelles

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Reply 2 on: Jun 24, 2018
Wow, this really help

yeungji

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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