Tony, Robert, and lyona start a catering company to show off their culinary skills. Each of them contribute to the initial fund of money required to start the company. The sum of their initial investment is $48,500. lyona contributes three times as much money as Tony and Robert contributes $7500 less than
lyona. How much money does each of them contribute?

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?