Carly tutors students in math on the weekends and offers both 30 minutes sessions and 60 minute sessions she earns $15 for each 30 minute session and $25 for each 60 minute session if she earned $230 this past weekend and had X 30 minute sessions and X -2 sixty minute sessions what is the value of X

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?