Keisha wants to estimate the percentage of managers at her company that hold an MBA. She surveys 320 managers and finds that 70 hold an MBA. Find the margin of error for the confidence interval for the population proportion with a 90% confidence level. z0.10 z0.05 z0.025 z0.01 z0.005 1.282 1.645 1.960 2.326 2.576   Use the table of common z-scores above. Round the final answer to three decimal places.

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Chapter1: Combinatorial Analysis
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Keisha wants to estimate the percentage of managers at her company that hold an MBA. She surveys 320 managers and finds that 70 hold an MBA.

Find the margin of error for the confidence interval for the population proportion with a 90% confidence level.

z0.10 z0.05 z0.025 z0.01 z0.005
1.282 1.645 1.960 2.326 2.576

 

Use the table of common z-scores above.

  • Round the final answer to three decimal places.
  •  
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