The diameter of bushings turned out by a manufacturing process is a normally distributed random variable with a mean of 4.035 mm and a standard deviation of 0.005 mm. a sample of 25 bushings is taken once an hour. (a) within what interval should 95 percent of the bushing diameters fall? (round your answers to 4 decimal places.) the 95% confidence interval is from to (b) within what interval should 95 percent of the sample means fall? (round your answers to 5 decimal places.) the 95% confidence interval is from to (c-1) what conclusion would you reach if you saw a sample mean of 4.020? the sample came from a population that a population mean equal to 4.035. (c-2) what conclusion would you reach if you saw a sample mean of 4.055? the sample came from a population that a population mean equal to 4.035.