The number of bacteria in a culture quadruples every hour. There were 65,536 bacteria in the culture at 8:00 A. M. The expression 65.536(4^ h ) models the number of bacteria in the culture h hours after 8:00 AM. What is the value of the expression for h = - 4 ?

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?