Question

Margin of Error Calculation:

If n=340 and p-hat = 0.62, calculate the margin of error at a 95% confidence level. Provide your answer to three decimal places.

Answer 1

To calculate the margin of error at a 95% confidence level when n=340 and p-hat=0.62, use the formula: ME = (z)(√(p-hat(1-p-hat))/√n). Substituting the given values into the formula, we get a margin of error of approximately 0.038.

Step-by-step explanation:

To calculate the margin of error at a 95% confidence level, we can use the formula:

ME = (z)(√(p-hat(1-p-hat))/√n)

Where:

Substituting the given values into the formula:

ME = (1.96)(√((0.62)(1-0.62))/√340) ≈ 0.038

So, the margin of error at a 95% confidence level is approximately 0.038.