$\"\"$

The formula for margin of sampling error is $\"\"$ , Where n is size of the sample.

The given values $\"\"$ .

$\"\"$ (Substitute $\"\"$ )

$\"\"$ (Subtract: $\"\"$ )

$\"\"$ (Multiply: $\"\"$ )

$\"\"$ (Divide: $\"\"$ )

$\"\"$ (Use a calculator: $\"\"$ )

The margin of error is about $\"\"$ . $\"\"$

The margin of error is about $\"\"$ .