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Question: Consider the following sample data of X and Y:
a. Regress Y against X without any constraints. What is the regression equation? Predict Y when X = 10.
b. Force the regression line through the origin. What is the new regression equation? Predict Y when X 10 with this equation.
c. Force the regression line to go through the point (5, 13). What is the new regression line? What is the new regression equation? Predict Y when X = 10 with this equation.
d. Regress Y against X with the constraint that the slope must be less than or equal to 2. What is the new regression equation? Predict Y when X = 10 with this equation.
Let X be the number of yes votes obtained from a random sample of 200 out of the entire voting population. What is the expected value of X if, in fact, 65% of all voters supported the dictator?
Clearly a straight line model does not accurately describe what is going on with this data. Does this mean there is no relationship between income and time?
Let X be the number of cucumbers that Mimi harvests (that is, the number of cucumbers not eaten by rabbits).
Calculate the standard deviation. Show all work. - What does the standard deviation say about launching this product?
Consider a worker-paced line with three process steps, each of which is staffed with one worker. The sequence of the three steps does not matter for the completion of the product.
on a sample of 30 women and 20 men 12 men like footbaill while 15 men like football. is there evidence for gender
Given the following values of central tendency for each distribution, determine whether the distribution is symmetrical, positively skewed, or negatively skewed:
A survey was completed to estimate the proportion of residents in support of constructing a new football stadium, at tax payer expense, to accommodate an NFL team in the LA area.
Assume rf is 5% and rm is 10%. According to the SML and CAPM, an asset with a beta of -2.0 has a required return of negative 5%[=5-2(10-5)]. Can this be possoble?
If an applicant is randomly selected, find the probability of a rating that is between 200 and 275.
Using the 0.05 level of signifi- cance in a two-tail test, examine whether the percentage of sample homes having a fireplace could have differed from 62% simply by chance. Determine and interpret the p-value for the test.
Also, the sample data appear to have a bell-shaped distribution. Construct the 95% confidence interval for the mean time spent on paperwork by all managers.
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