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1) When is regression used? What are the assumptions of Linear Regression?
2) What is correlation? How does it differ from regression? What is the interpretation of the correlation coefficient?
Determine the following areas under standard Normal distribution curve.
Different approaches for creating systems simulation models include?
Assume that sigma = 60, choose an alpha level, and perform a hypothesis test to determine whether this is good evidence to conclude that the mean score for all young men is less than 275.
A company that has 200 employees chooses a committee of 15 to represent . When the committee is formed, none of the 56 minority employees are selected. if the committee is chosen randomly. What is the probability that it contains no minorities.
Don Levine Corporation is considering adding an additional plant to its three existing facilities in Decatur, Minneapolis, and Carbondale. Both St. Louis and East St.Louis are being considered.
Calculate the population mean and population standard deviation.
Briefly describe co relational research. Name a variable from this study and one from the workplace that might prove to provide a co relational relationship
Scores on a test are normally distributed with a mean of 60.9 and a standard deviation of 12. Find P81, which separates the bottom 81% from the top 19%.
Determine the relationships among data above? Analyze with charts/graphs/tables and a discussion.
The Duracells had an average lifetime of 18.67 hours (SD = 1.176 hours) while the Energizer batteries had an average lifetime of 16.83 hours (SD = 2.878 hours). Assuming the population standard deviations to be equal, what is the test statisitic a..
Sarah is a 60 year old Anglo female in reasonably good health. She wants to take out a $50,000 term life insurance policy until she is 65.
Testing for population mean - warp-breaking specification of the manufacturer at the .05 level of significance?
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