A quality control specialist for a restaurant chain takes a random sample of size 12 to check the amount of soda served in the 16 oz. serving size. The sample mean is 13.30 with a sample standard deviation of 1.55. Assume the underlying population is normally distributed.
What is meant by the term "90% confident" when constructing a confidence interval for a mean?
A. If we took repeated samples, approximately 90% of the samples would produce the same confidence interval.
B. If we took repeated samples, approximately 90% of the confidence intervals calculated from those samples would contain the sample mean.
C. If we took repeated samples, approximately 90% of the confidence intervals calculated from those samples would contain the true value of the population mean.
D. If we took repeated samples, the sample mean would equal the population mean in approximately 90% of the samples.