Your uncle just bought a hybrid car and wants to take you and your siblings camping. Before you leave for the trip your uncle fills up the car with 18 gallons of gas. After driving for 1 hour there are 16.5 gallons of gas left in the tank. Create a table, graph and equation to determine the gallons of gas left in the car tank after driving to the campsite. Based on your information, is this scenario proportional or not? Why?

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?