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An automobile manufacturer is concerned about a fault in the braking mechanism of a particular model. The fault can, on rare occasions, cause a catastrophe at high speed. The distribution of the number of cars per year that will experience the fault is a Poisson random variable with A = 5.
a) What is the probability that at most 3 cars per year will experience a catastrophe?
b) What is the probability that more than 1 car per year will experience a catastrophe?
Can the binomial distribution be used to model the number of rare events that occur over a given time period?
If a Normal model is useful for describing slalom times, approximately how many of the other 35 skiers finishing the event would you expect skied the slalom faster than Jean-Baptiste?
Compare and contrast the characteristics of parametric and non-parametric test methodologies. Give examples of when to use each.
in a recent survey concerning company sales and net earnings. 15 companies responded with the following
Assume that a simple random sample is selected from a normally distributed population, use eith the P-value method or the tradiitonal method of testing hypotheses.
Can Mr. Rutter conclude that the mean weight of the bags is less than 50 pounds? Use the 0.1 significance level. In a brief report, tell why Mr. Rutter can use the z distribution as the test statistic.
Normal distribution with mean 32.6 ounces and standard deviation 0.4 ounce. If two packages are randomly selected, what is the probability that the average weight is less than 32 ounces?
A large industrial firm uses 3 local motels to provide overnight accommodations for its clients. From past experience it is known that 20% of the clients are assigned rooms at the Ramada Inn, 50% at the Sheraton, and 30% at the Holiday Inn.
Such things as historical documents, newspaper reports, TV and radio broadcasts, when used in research, represents
Explain finding value of test statistic for the given data also interpret the result. Can Mr. Ratter compute which the mean weight of the bags is less than 50 pounds.
The director of golf for the Links Group wishes to study the number of rounds of golf played by members on weekdays. At the .05 significance level, is there a difference in the number of rounds played by day of the week?
Using thesedata, perform a simple regression analysis to predict the price of a digital camera using the number of effective megapixels. Interpret the slope term and state whether it is consistent with the buyer's prior belief.
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