Ben drove his car 467 kilometer in 5 hours while he was on vacation in italy. he was trying to estimate how far he could drive in 7 hours the next day, so he set up the following proportion: . is his proportion correct? or, incorrect? explain your choice and support with appropriate mathematical terminology.

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?