Question

Find the margin of error for the given values of co, and n.
c=0.95,0 = 3.2, n=81
E= ????

Answer 1

The margin of error for the given values is 0.33725

Explanation:

The margin of error expresses the maximum expected difference between the true population parameter and a sample estimate of that parameter. To be meaningful, the margin of error should be qualified by a probability statement (often expressed in the form of a confidence level).

Margin error =
`c((o)/(√(n)))`

Now substituting the values we get

Margin error =
`0.95((3.2)/(√(81)))`

Margin error =
`0.95((3.2)/(9))`

Margin error =
`0.95((3.2)/(9))`

Margin error =
`0.95 * (0.355)`

Margin error = 0.33725