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The flashlight batteries produced by Manufacturer X are known to have a mean life of 60 hours, with a standard deviation of 4 hours. At least what percentage of flashlights will have a life of 54 to 66 hours?
State the largest possible domain for the definition of the function. f(x,y) = cube-root(y^2-x)
Note down a research that requires a decision making with probabilities.
Suppose that a group of 48 students who took the SAT was chosen. If you wanted to calculate a probability for the average SAT score for these 48 students, what is the standard error.
Conduct a one-tailed hypothesis test given the information below. A certain brand of fluorescent light tube was advertised as having an effective life span before burning out of 4000 hours.
Apply Scheduling Theory in order to optimize a schedule of events and reduce lost productivity
A state education agency designs and administers high school proficiency exams. Historically, time to complete the exam was an average of 120 minutes.
Assume that each of the following studies cannot be analyzed using a parametric procedure. For each of the following studies (below), indicate the appropriate nonparametric procedure, and explain why you chose it.
On the other hand, if the market is unfavorable. ken will suffer a loss of $200.000. But ken has always been a very optimistic decision maker.
A job placement director claims that the average starting salary for nurses is 24,000.A sample of 10 nurses' salaries has a mean of 23, 450 and a standard deviation of 400. Is there enough evidence to reject the director's claim at 0.05 level of s..
An additional $3,000 of net working capital will be required throughout the life of the project. What is the project's net present value if the required rate of return is 11 percent?
The membership for the club this year isobserved to be 14 freshman, 19 sophomores, 51 Juniors and 16Seniors. At 95% level of confidence, test the advisors belief..
Give an example of a hypothesis test. State what the Null and the Alternative hypotheses.
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