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In a test for effectiveness of garlic for lowering cholesterol, 47 subjects were treated with Garlicin. Cholesterol levels were measured before and after the treatment. The changes in their levels of LDL, cholesterol (in mg/dL) have a mean of 5.5 and standard deviation of of 15.7
Construct a 95% confidence interval estimate of the mean net change of LDL, cholesterol after the Garlicin treatment.
your name and that of a friend is included in a raffle drawing. for the raffle two tickets will be drawn and those
Use MegaStat's output for simple linear regression to determine the regression equation
given a one independent variable linear equation that states cost in k and given the following information calculate
Give an example of how you may use multiple regression to answer a question related to the impact of leadership change on employee attitudes scores, teambuilding training and performance outcomes.
an irs auditor randomly selects 5 tax returns from 42 returns of which 15 contain errors. what is the probability that
before bidding on a contract a contractor wants to be 90 confident that he is in error by less than 20 minutes in
A fellow researcher fits a simple linear regression model Yi = α + βXi + ui by least squares, but has doubts that the first least squares assumption E(ui |Xi) = 0 is correct for her data set.
The records of a casualty insurance company show that, in the past, its clients have had a mean of 1.8 auto accidents per day with a variance of 0.0016.
answer the following in 50 to 150 words each. provide citations for all the sources you use. what is racism? in what
At 99% confidence, test to determine if there is sufficient evidence to indicate that process 2 takes a significantly longer time to manufacture the Zip drives.
Assume you want to estimate the population proportion,p, and the estimator for the mean proportion (p-hat)= 0.34, N = 6000, and n = 1300. Find an approximate 95% confidence interval for p.
jacks game preserve is stocked with 30 moose 25 elk and 45 deer. five years later a sample of animals yields 90 moose
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