Multiply: (2x} + 12x) (2v10x5 + 6x2 2110x4 + 2V/3.rº +4 15x + 6. 2x
2x2 V5+2xv3x + 2x 30 + 3xv2x
O
4x4 15 + 2x2 3x + 4x 30 + 6x2x
24V20+x? V6x + x 120+ x 12x
DONE

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?