Using the Law of Cosines, find PQ rounded to the nearest hundredth (two decimal places). P.
7.4
58
R
Q
6.5
A: PQ = 8.82
B: PQ = 6.78
C: PQ = 1.79

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?