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Author Question: A ________ confidence interval might be most appropriate during the early stages of a research ... (Read 86 times)

craiczarry

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on: Jun 24, 2018
A ________ confidence interval might be most appropriate during the early stages of a research project when little is known about the population's parameters and the project's researchers might still be gauging the parameters.
 
  A) 90
  B) 95
  C) 99
  D) 100

Question 2

Suppose the local Best Buy store averages 483 customers per day entering the facility with a standard deviation of 112customers. A random sample of 48 business days was selected.
 
  What is the probability that the average number of customers in the sample is between 480 and 500?A) 0.1579
  B) 0.2521
  C) 0.3377
  D) 0.4284
Business Statistics ¦ Donnelly ¦ 2nd Edition
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matt95

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

A

Answer to Question 2

D


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