Which expression can be simplified to find the slope of the trend line in the scatterplot? On a coordinate plane, a line goes through points (2, 79) and (12, 24). StartFraction 24 minus 79 Over 12 minus 2 EndFraction StartFraction 24 + 79 Over 12 + 2 EndFraction StartFraction 24 minus 79 Over 2 minus 12 EndFraction StartFraction 24 minus 79 Over 12 + 2 EndFraction

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?