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Independence cannot usually be seen or proved from Venn Diagrams. Example: For the following Venn Diagrams decide whether or not the events A and B are independent, mutually exclusive or both. If two events A and B are mutually exclusive (A B = ), then they cannot be independent if P(A) > 0 and P(B) > 0. Why?
Prepare a 350-word memo to Myra Reid, the Vice President of Production at Blue Inc. Inform Myra of your forecasts and explain the reasons for your decision.
Assuming that the Poisson distribution is a plausible model in describing variability of asbestos fiber counts in filters; derive a 95% confidence interval indicating the variability in the average number in asbestos fibers.
Generate the statistical null and alternative hypotheses. Describe what information the effect size would tell you that the probability value would not tell you.
Inventory manager for Itex received wheels bearing from Wheel - Rite a small producer of metal parts , Unfortunately , Wheel -rite can only produce 500 wheel bearings from wheel rite each year.
In your workplace? Elsewhere in the business sector? In your education (during your UOPX degree program)? In politics? Explain your response.
Quality Progress, Feburary 2005, reports on the results achieved by Bank of America in improving customer satisfaction and customer loyalty by listening to the "voice of the customer".
The probability that average amount of purchase per weekend from Sam's sample is greater than average amount of purchase per weekend from Katie's sample =
Conduct a hypothesis test using the .04 level of significance to determine if there is a difference between the population means.
Find the z score corresponding to a score of X = 60 for each of the following distributions:
Suppose we have run a regression on 48 months of data and the regression equation is Y = 50000 + 1000*x (where x is the month number).
he population consists of all 15 year olds living in the attendance district of a local high school. You plan to obtain a simple random sample of 200 such residents by using the roster of the high school as the sampling frame.
A company operates four machines during three shifts each day. From production records, the data in the table below were collected.
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