Question

A survey of 15 restaurants in a fast-food restaurant group showed a mean customer satisfaction index of 73 with a sample standard deviation of

E. What is the margin of error if the confidence level is not provided?

Answer 1

The margin of error cannot be determined without the confidence level provided.

Step-by-step explanation:

The margin of error is a measure of the uncertainty or variability in an estimate based on a sample. It is calculated using the standard deviation, sample size, and the desired confidence level. In this case, since the confidence level is not provided, we cannot determine the margin of error.

If the confidence level was provided, we could use a standard formula to calculate the margin of error. For example, if the confidence level was 95%, the margin of error can be calculated as:

Margin of Error = (Z value) * (standard deviation / sqrt(sample size))