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A standard for full credibility of 1,000 claims has been selected so that the actual pure premium will be within 10% of the expected pure premium 95% of the time. The number of claims has the Poisson distribution. Determine the coeffcient of variation of the severity distribution.
Airlines monitor the causes of flights arriving late. 75% of flights are late because of weather, 35% of flights are late because of ground operations. 10% of flights are late because of weather and ground operations.
Fit a linear regression model for bp against sodium. Do you think this is a model with a good fit? Why?
Test hypothesis that both propellants have same mean burning rate. Utilize α=0.05. Compute the P value.
Compute the value of t. What is your decision regarding the null hypothesis? Briefly summarize your results.
The state highway department is studying traffic patterns on one of the busiest highways in the state. As part of the study, the department needs to estimate the average number of vehicles that pass an intersection each day. A random sample of 64 ..
In what sense is this business problem? A societal problem? An individual problem?
The standard deviation is estimated to be 0.279. Use the 99% level of confidence.
Determine the z values for 29 and 34 hours. What percent of the garages take between 32 hours and 34 hours to erect?
The mean of a normal probability distribution is 60; the standard deviation is 5.
A study published in the New England Journal of Medicine (Aug. 2001) suggests that it's dangerous to enter a hospital on a weekend. During a 10-year period, researchers tracked over 4 million emergency admissions to hospitals in Ontario, Canada. T..
Determine the probability that mean height of random sample of 100 women is greater than 66 inches?
A histogram of time spent eating & drinking each day is skewed right. Use this result to explain why a large sample size is needed to construct a confidence interval for the mean time spent eating & drinking each day.
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