Suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less than 33%. A mutual-fund rating agency randomly selects 2121 months and determines the rate of return for a certain fund. The standard deviation of the rate of return is computed to be 2.632.63%. Is there sufficient evidence to conclude that the fund has moderate risk at the alpha equals 0.05α=0.05 level of significance? A normal probability plot indicates that the monthly rates of return are normally distributed.

Of four points are collinear, they are also coplanar

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent

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 bsuppose 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 cnow try a numerical problem. what is the direction of the vector w = < -1, 6 > ?