Plz im ! a tree casts a shadow 12 feet long. a 5 ft pole is placed perpendicular to the ground. the length of the pole's shadow is 4 feet. how tall is the tree? a) 1 2/3 ft b) 9.6 ft c) 15 ft d) 16 ft

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?