The Wall Street Journal reported that the age at first startup for 95% of entrepreneurs was 29 years of age or less and the age at first startup for 5% of entrepreneurs was 30 years of age or more.   (a) Suppose a sample of 200 entrepreneurs will be taken to learn about the most important qualities of entrepreneurs. Show the sampling distribution of p where p is the sample proportion of entrepreneurs whose first startup was at 29 years of age or less. If required, round your answers to four decimal places.   np = 190   n(1-p) = 10   E(p) =    σ(p) =

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The Wall Street Journal reported that the age at first startup for 95% of entrepreneurs was 29 years of age or less and the age at first startup for 5% of entrepreneurs was 30 years of age or more.

 

(a) Suppose a sample of 200 entrepreneurs will be taken to learn about the most important qualities of entrepreneurs. Show the sampling distribution of p where p is the sample proportion of entrepreneurs whose first startup was at 29 years of age or less. If required, round your answers to four decimal places.
  np = 190
  n(1-p) = 10
  E(p) = 
  σ(p) = 
(b) Suppose a sample of 200 entrepreneurs will be taken to learn about the most important qualities of entrepreneurs. Show the sampling distribution of p where p is now the sample proportion of entrepreneurs whose first startup was at 30 years of age or more. If required, round your answers to four decimal places.
  np = 
  n(1-p) = 
  E(p) = 
  σ(p) = 
(c) Are the standard errors of the sampling distributions different in parts (a) and (b)?
   
  Justify your answer.
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