Assume that the population proportion is 0.80. 1. Compute the standard error of

Question

Assume that the population proportion is 0.80.

1. Compute the standard error of the sample proportion for a sample size of 100 (provide your answer using exactly three decimal places).

2. Compute the standard error of the sample proportion for a sample size of 256 (provide your answer using exactly three decimal places).

3. Compute the standard error of the sample proportion for a sample size of 625 (provide your answer using exactly three decimal places).

4. Compute the standard error of the sample proportion for a sample size of 1600 (provide your answer using exactly three decimal places).

Explanation / Answer

a)

We get the standard error of p, sp:              
              
sp = sqrt[p(1 - p) / n] =    0.04   [ANSWER]

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b)

We get the standard error of p, sp:              
              
sp = sqrt[p(1 - p) / n] =    0.025   [ANSWER]

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c)

We get the standard error of p, sp:              
              
sp = sqrt[p(1 - p) / n] =    0.016   [ANSWER]

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d)

We get the standard error of p, sp:              
              
sp = sqrt[p(1 - p) / n] =    0.01   [ANSWER]      
      
      
      

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