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Consider a charity organizations that receives random donations. Assume the donations to arrive following a Poisson process with a rate of one donation per hour in average. Each donation can be $1, $5, $10, or $50 with equal probability.
day's balance is zero. In one year time (365 days from now) the organization will have a one time expense of $140,000 to buy a new office.
What is the probability that it will not be able to make the payment?
Write a program to solve the above problem
The following data provided by a coffee company are the roast time in minutes for five batches of coffee (x) and the resulting shrinkage in percent of the coffee weight(y).
You are presented a 90% confidence interval for the difference in population mean scores (with drug - without drug) of (-17.81, -7.24). What can you conclude from this interval?
Develop a linear regression model for these data and forecast carpet sales if 30 construction permits for new homes are filed.
In a sample of 64 patients, suppose that 47 showed allergic reduced reaction and 17 show increased reaction. Are these results sufficient to conclude a significant effect?
Construct an appropriate control chart and comment on the process.
Construct a 95% confidence interval estimate for the population proportion of administrative professionals who prefer cash bonuses.
Part 1. What is the appropriate distribution for such data? Part 2. Is this lot anomalous?
510 people were asked which of four fast food restaurant were their favorite. Determine if there is a preference for any one place over any other.
A question has these possible choices - excellent, very good, good, fair, and unsatisfactory. How many degrees of freedom are there using the goodness-of-fit test to the sample results?
In order to test the effectiveness of a drug called XZR designed to reduce cholesterol levels, 9 heart patients' cholesterol levels are measured before they are given the drug.
Find a 95% confidence interval for the mean of all drinks dispensed by this machine if a random sample of 36 drinks has an average content of 2.25 deciliters.
British scientists have developed a 15 minute brain scan they hope could be used to detect autism in children. Autism and related disorders affect up to 7 out of every 1000 individuals.
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