The Trial Urban District Assessment (TUDA) is a government-sponsored study of student achievement in large urban school district
s. TUDA gives a mathematics test scored from 0 to 500. A score of 262 is a "basic" mathematics level and a score of 299 is "proficient." Scores for a random sample of 1 100 eighth-gr ders in Dallas had 271 with standard error 1.3. (a) We don't have the 1100 individual scores, but use of the t procedures is surely safe. Why? O
A. Because the sample size is very large.
B. Because the sample doesn't have outliers.
C. Because the data haya strong skew.
D. Because use of the t procedures is always safe.
Hello : <span> a slope intercept equation is : y - b = s (x - a ) passing </span>through <span>the given point A( a , b) and the slope : s when : s×s' = -1 </span>s' : the slope of The other line .
