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The expected project completion time for the construction of a pleasure yatch is 21 months and the project variance is 6. What is the probability that the project will
a. require at least 17 months?
b. be completed in 20 months?
c. require at least 23 months?
d. be completed within 25 months?
Please show the steps . Can you explain how to use the NORMDIST in excel
How do you get the standard deviation?
the multiple coefficient of determination reports the proportion of the variation in y that is not explained by the
Establish an approximate design to MTBF required for a system that will result in an approximate minimum total cost over a five year period if the system is to be operated 7500 hours per year
suppose we draw two tickets from a hat that contains tickets numbered 1234. let x be the 1st number drawn and y be the
Distinguish between a minimization and maximization LP model. Other than minimizing costs and maximizing profits, give a real-world example of where you would want to minimize something or maximize something.
The expected value of the number of simple random samples of size 20 that must be drawn until (and including) the first sample that contains at least one voter who is neither a Democrat nor a Republican is?
listed below are the overhead widths in cm of seals measured from photographs and the weights in kg of the
Two airlines fly to Memphis. according to airport data for the past year, wings airlines planes arrived on time 330 times and were late 60 times. Global airlines planes arrived on time 430 times and were late 50 times.
What are confounds? Give an example of a design that has three confounds. Describe three ways to alter the design to address these confounds and explain the advantages and disadvantages of each.
For a hypothesis comparing two population means, what is the critical value for a one-tailed hypothesis test, using a 5% level of significance level, with both sample sizes equal to 13? Assume the population standard deviations are equal.
in a recent survey 344 ceos of medium and large companies were asked whether they had mba degrees. in the sample 97 had
Ms. Tina Stevens just purchased a new dress that cost $120. What is the probability she paid cash or check? (Round your answer to 3 decimal places.)
Perform the check regarding the sample size that confirms the sampling distribution of the possible values for will be approximately normally distributed.
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