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An airline company sells 160 tickets for a plane with 150 seats, knowing that the probability that a passenger will not show up for the flight is .1. use the poisson approximation to compute the probability that they will have enough seats for all the passengers who show up
does a follow-up reminder increase the renewal rate on a magazine subscription? a magazine sent out 760 subscription
Population standard deviation of 5 and you select a sample size of 100, what is the probability that the sample mean is between 47 and 49.5?
A population of scores has m=50 and o=10. If 5 points are added to every score in the population, then the new mean and standard deviation would be:
Does the evidence suggest that postpartum women do not get enough sleep? Use =0.05 level of significance. How is the problem set up using the classical and P-value approach?
Give an example of a hypothesis test. State what the Null and the Alternative hypotheses.
Chicken Delight claims that 90% of its orders are delivered within 10 minutes of the time the order is placed. A sample of 100 orders revealed that 82 were delivered within the promised time.
Since she is allowed to reserve one time if her first serve is out what should her serving strategy be?
Simple random sample of 100 elements is taken: (a) What is the chance of an element being included in the sample? (b) What is this chance called (hint: not probability)?
Find Karl Pearson's correlation coefficient between the sales and expenses from the data given below: Sales (Rs. Lakhs) 50 50 55 60 65 65 65 60 60 50 Expenses (Rs. Lakhs) 11 13 14 16 16 15 15 14 13 13?"
Findout the consumption level separating the bottom 45% to the top 55%. The September energy consumption levels for single family homes are found to the normally distributed with a mean
Assuming that both patients are on time, find the expected amount of time that the 1:30 appointment spends in the doctor's office.
if one of the pedestrians death is randomly selected what is the probability that it involves an intoxicated pedestrian and an intoxicated driver?
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