12.
(07.02 lc)
ash recycles 7 plastic bottles every week. which expression shows the total number of plastic bottles he recycles in w weeks? (1 point)

7 + w

7 + 7w

7w

w over 7

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?