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Given the following situation, how would you use Megastat to test whether the population defective rate is greater than 5%? Please outline the process for the test and, if necessary, including the output from Megastat to explain your approach. What assumption do you need to check to make sure that the analysis is valid.
"A random sample of 100 cell phones was inspected in a cell phone factory. It was found that 8 of the cell phone is defective in some way. Based on this data, the auditor wants to perform a statistical test to see that the defective rate of cell phone produced by the factory is greater than 5%."
What is the technical definition of alpha? When might a "high level of proof" be required in business? Why does a "high level of proof" mean a small value of alpha?
Identify the formal hypothesis testing process. Perform a hypothesis test of one proportion.
Find the least squares regression line by deciding which are the appropriate independent and dependent variables and calculating the equation of the line. State equation of line.
An important issue facing Americans is the large number of medical malpractice lawsuits and the expenses that they generate. In a study of 1228 randomly selected medical malpractice lawsuits
The researcher expects a 12-point treatment effect and plans to use a two-tailed hypothesis test with a = 0.05.
Discuss which analysis of variance should be applied when an experiment has more than one independent variable. Discuss the assumptions and limitations of the analysis of variance in comparison with the t test including a discussion of post hoc te..
In 36 randomly selected seawater samples, the mean sodium chloride concentration was 23 cubic centimeters per cubic meter and the standard deviation was 6.7 cubic centimeters per cubic meter (cc/cm).
Suppose that you're the Quality Manager for the Emerson D. Meritz Machine Tool Company. Your model IE566 grinding machine is afflicted by three types of defects classified as major (type A), serious (type B) and minor (type C).
A bond analyst is analyzing interest rates for corresponding municipal bonds issued by two different states. At α = .05, is there a difference in interest rates paid by two states?
Fix-It Copiers advertises mean time of 100 minutes for office calls with standard deviation of 25 minutes. What percentages of calls are completed?
Make up a scatter diagram with 10 dots for each of the following:
If the loss of weight of customers at the end of their first month is normally distributed with a mean of 6.7lbs and a standard deviation of 0.81lbs
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