PLEASE HELP WILL AWARD BRAINLIEST IF GOOD EXPLANATION THANK YOU x varies directly with y and inversely with . If x = 3 and y = 12 when z = 2, find y when x = 1 and z = 4.

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?