What effect does changing the function f(x)=1/2 sin(x)+2 to the function g(x)= 2 sin(x)+8 have on the graph of f(x)? the graph is vertically stretched by a factor of 4 and shifted up 6 units. the graph is horizontally stretched by a factor of 6 and shifted up 4 units. the graph is vertically stretched by a factor of 6 and shifted up 4 units. the graph is horizontally stretched by a factor of 4 and shifted up 6 units.

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?