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Author Question: Suppose a manufacturer, Company B, produces lawnmowers and a researcher is interested in the ... (Read 347 times)

tth

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on: Jul 24, 2018

  Suppose a manufacturer, Company B, produces lawnmowers and a researcher is interested in the proportion of all lawnmowers purchased that are made by this manufacturer. A random sample of 150 individuals who purchased lawnmowers was taken and it was found that 42 of them purchased lawnmowers produced by Company B. Which of the following is an unbiased estimate of the population proportion of all lawnmowers purchased that are produced by Company B?
 

  a.0.72
  b.The population proportion is not known so an unbiased estimate cannot be determined.
  c.0.28
 

d.42
 
 



Question 2


  Which of the following must be true for a point estimator, , to be an unbiased estimator ?
 

  a.
  b.The variance of the sampling distribution of equals .
  c.
 

d.
 
 



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Alyson.hiatt@yahoo.com

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

correct: c

Answer to Question 2

correct: d


tth

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Reply #2 on: Jul 24, 2018
Both answers were spot on, thank you once again


Alyson.hiatt@yahoo.com

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Reply #3 on: Jul 24, 2018
Great! Please up vote :D


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