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The human resources department at a large multina- tional corporation wants to be able to predict average salary for a given number of years experience. Data on salary (in $1000's) and years of experience were collected for a sample of employees.
a) Which variable is the explanatory or predictor variable?
b) Which variable is the response variable?
c) Which variable would you plot on the y axis?
Compute the correlation coefficient for the data. (Round your answer to 4 decimal places, the tolerance is +/-0.0001.) What is your interpretation of this value?
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You take a random sample and perform a hypothesis test, getting a p-value of 0.2578. What is the appropriate conclusion? Conclude at the 5% level of significance.
suppose that a 2-year old boy named cahnce sits at a computer and types exactly 6 unique alphabet keys. what is the
a simple random sample of 100 postal employees is used to test if the average time postal employees have worked for the
a rancher runs a closed herd of breedin cattle.he keeps and breeds the top 3of bull calves based on individual
Develop a regression model to fit the trend effects for the data. Use a linear model and then try a quadratic model and how well does either model fit the data?
an article states that false-positives in polygraph tests i.e. tests in which an individual fails even though he or she
astronomers estimate that as many as 100 billion stars in the milky way galaxy are encircled by planets. if so we may
An investigator wants to design a study to estimate the difference in the proportions of men and women who develop early onset cardiovascular disease
Two pairs is a poker hand containing 2 cards of one denomination, another 2 cards of a second denomination, and a fifth cards of a third dimension. Find the probability of a player being dealt two pairs.
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