Suppose that a 90% confidence interval for a population mean is given to be from 550 to 650.The 90% value in this statement indicates that: (choose the one best answer) A. P ( 550 < < 650 ) = 0.90 B. There is a 90% chance that falls between 550 and 650. C. When the statistical techniques in this unit are applied to build a 90% confidence interval around the mean of any randomly collected sample, we can only expect 90% of such calculated intervals to contain the true value of . D. There is a 90% chance that the collected sample mean will be between 550 and 650.