After all of the surveys have been compiled and analyzed, the calculated level of satisfaction for "overall quality" for a sample was 6.2 0.5. Select the true statement regarding the margin of error of this scenario.

• a.)The margin of error is the total number of subjects in the sample and is equal to 6.2.
• b.)The margin of error is the amount by which the sample mean is different from the true mean and is equal to 0.5.
• c.)The margin of error is the mean value obtained from the sample and is equal to 6.2.
• d.)The margin of error is the range of potential values that the true value could be and is equal to 6.2 0.5.