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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
A sample of 120 observations revealed that p = .30. At the .05 significance level, can the null hypothesis be rejected?
A psychologist studied self-esteem scores and found the data set to be normally distributed with a mean of 50 and a standard deviation of 6. A raw score of 47 is associated with what percentile?
A research team conducted a study of soft-drink preferences among residents in a test market prior to an advertising campaign for a new cola product.
Conduct the hypothesis test and provide the test statistic, critical value and/or P- value and state the conclusion.
what is the probability that a randomly selected value from the distribution will be greater than 2.1 standard deviations avoe the mean?
Let X be a normal distributed random Variable with u=100 and o=10. the probability that X is between 70 and 100 is:
If statistically significant, do you think the difference is large enough to be important?
Compute the expected number of barrels that will be sol on Saturday. (Answer to Whole numbers)
A statistical analysis of 1000 long distance telephone calls made from the headquarters of the Bricks and Clicks Computer Corporation indicates that the length of these calls is normally distributed with u=240 seconds and sigma = 40 seconds.
When would you use a two population test with a small sample size at your place of employment, in your education, or in politics?
An orange juice producer buys only one kind of oranges. The amount of juice squeezed from each of these oranges is approximately normally distributed with a mean of 4.2 ounces and a population standard deviation of 1 ounce.
Community policing strategies have been useful in some jurisdictions to reduce crime. As Police Captain, you wish to run an experiment to see whether it will work in your city.
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