Jay's dad is saving for a new motorized go-cart. Each week he puts $200 aside. a) Write an expression that represents the total amount in dollars he saves in X
weeks
b) His goal is to save $1500. He's been putting aside money for the past 3 weeks.
How much more money does he need to save and how many weeks will it take
him to reach his goal?

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?