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1. a. One set of 20 pairs of scores, X and Y values, produces a correlation of r=0.70. If SSY= 150, find the standard error of estimate for the regression line.
b. A second set of 20 pairs of X and Y values produces a correlation of r =0.30. If SSY = 150, find the standard error of estimate for the regression line.
What is the Chi-square test? Where can you apply it? Please site an example of how it was used and the outcome of the test. I think this could help me better than the book, it is difficult to understand.
the central limit theorem helps researchers answer questions abouta. sample means for small sample sizes.b. sample
suppose a point xy is chosen at random from the disk x2 y2 lt 1. find a the marginal density of x and b the
Thirty-two samples of 8 items each were collected from a process. The average sample mean is 12 and the average range is 0.10.
Given your answer to part a and a stated interest rate of 9 percent on the total amount borrowed, what is the effective rate on $400,000 actually being used?
A group of 47 randomly selected students have a mean score of 20.2 with a standard deviation of 4.6 on a placement test. Construct a 90% confidence interval for the mean score, , of all students taking the test.
description of the datasetwe will be using a dataset on neighborhood effects for this assignment.these data are drawn
Determine the greatest acceleration with which the 1-Mg forklift can raise the 750kg crate withour causing the wheels at B to leave the ground. the centers of mass for the forklift and the crate are located ar G1 and G2 respectively.
Compute the two weights that give the cutoff points for the three categories.
One of the most famous probability calculations is called the "birthday problem". In probability theory, the birthday problem or birthday paradox concerns the probability that, in a set of n randomly chosen people
questionnew horizons airlines wants to forecast the mean number of unoccupied seats per flight to germany next
a repeated-measures study comparing two treatments with n 4 participants produces md 2 and ss 75 for the difference
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