For each of the following situations, identify the response variable and the populations to be compared, and give i, the ni, and n.

(a) a poultry farmer is interested in reducing the cholesterol level in his marketable eggs. he wants to compare two different cholesterol-lowering drugs added to the hen's standard diet as well as an all-vegetarian diet. he assigns 35 of his hens to each of the three treatments.
response variable:

caloric intake

egg cholesterol level

diet cholesterol level

number of hens

number of marketable eggs laid

populations: (select all that apply.)

all eggs laid on a farm

hens on an all-vegetarian diet

all hens on a farm

hens on a standard diet and receiving one of two cholesterol-lowering drugs

eggs with different cholesterol levels

i =
n1 =
n2 =
n3 =
n =

I've been working on this for a few days and i just don't understand, it's due in a few hours. you. the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α. part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part b suppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i.e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case. part c now try a numerical problem. what is the direction of the vector w = < -1, 6 > ?