A manufacturer of flea collars for animals that weigh less than 5 kilograms injects the collars
with 15 milligrams of a biocide that only acts on fleas. The manufacturer will release a collar that
has no less than 14 milligrams and no more than 16 milligrams of insecticide. The following list
shows the result of sampling 36 collars from an actual production run of 720 collars.
17, 14, 14, 16, 14, 15, 15, 15, 16, 14, 16, 14, 15, 15, 15, 16, 13, 13, 13, 13, 13, 14, 14, 13, 17, 14,
15, 13, 14, 15, 16, 17, 14, 17, 14, 15, 4.
7. How many flea collars out of a production run of 720 collars would be acceptable to ship
according to this sample? Explain your reasoning.

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 > ?