Highlands
The dot plots show rainfall totals for several spring
storms in highland areas and lowland areas.
OOO

What is the mean rainfall for the highland storms?
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32
Rainfall (mm)
Lowlands
What is the mean rainfall for the lowland storms?
..8
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32
Rainfall (mm)

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?