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The Wall Street Journal reported that the age at first startup for 5 5 % of entrepreneurs was 2 9 years of age or less

The Wall Street Journal reported that the age at first startup for 55% of entrepreneurs was 29 years of age or less and the age at first startup for 45% 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. Calculate 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 =
n(1-p)=
E(p)=
=
(b) Suppose a sample of 200 entrepreneurs will be taken to learn about the most important qualities of entrepreneurs. Calculate 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)=
=
(c) Are the standard errors of the sampling distributions different in parts (a) and (b)?
- Select your answer -
Justify your answer.
The sample size and the product of p(1 p) are
- Select your answer -
in both calculations.

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