Question

An experiment using 35 guinea pigs is set up to study the weight of the pigs after injecting them with a drug. If the population mean is 23.5 grams with a standard deviation of 3.4 grams, what is the margin of error of the sample mean?

Answer 1

The formula in getting the margin of error of the sample mean, the formula is the product of the percentage of confidence and the quotient of the population of the standard deviation and the square root of of its sample size. So the answer is  0.097 grams

Answer 2

If the population mean is 23.5 grams with a standard deviation of 3.4 grams, then the margin of error of the sample mean is 0.097 grams. The correct answer between all the choices given is the first choice or letter A. I am hoping that this answer has satisfied your query about this specific question.