Which of the following operations should be used first to solve 10t + 5 = 150. Divide by 10 to get t + 5 = 15
Subtract 5 to get 5t = 145
Subtract 5 to get 10t = 145.
Add 5 to get 10t = 200

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?