Statistics encompasses the design of experiment or sampling
procedures, the collection and effective presentation of the DATA,
proper DATA analysis and the facilitation of wise decisions made
in the face of uncertainty.
There are two areas of
Statistically based decisions & predictions (statistical inference) provide the
statistician with a set of methods that aid in decision making UNDER
UNCERTAINTY. Probability is used to measure the degree of uncertainty
involved. Probability se
1. Y = bx + A
a. Y = predicted score
b. B = slope
c. A = y intercept
4. The standard error of the estimate measures the accuracy of predictions
d. SE = sqrt [ (y y1)2 ] / N
a. r and determine if it is significantly different from zero.