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An automobile accidents occur over a 72 hour holiday period are like events in a poisson process with = 10 per hour. Let Y be the time for the first accident.
a) What is the mean of Y and variance of Y?
b) Find P(Y > 15 minutes).
what trig function has a period of π
Problem 2: Construct a scatter plot of the following data using Minitab:
Determine whether the binomial distribution is an appropriate model for the probability distribution of the given experiment.
A program was developed to improve nutrition among low-income residents in New York City. This program was evaluated by comparing NYC residents who were randomly assigned to the intervention group vs. residents assigned to the control group. The..
For many randomized experiments, researchers recruit volunteers who agree to accept whichever treatment is randomly assigned to them. Why do you think this strategy cannot always be used, thus requiring observational studies to be used instead?
Obtain a test statistic and p-value. Interpret the results. (c) Is normality assured? (d) Is the difference large enough to be important?
There is an evening number, also consisting of three digits, 0-9. If all of the midday and evening numbers are equally likely, what is the probability that the two numbers are the same?
Employ the frequency distribution, which describes the response of a survey of college students when asked, "How often do you wear a seat belt when riding in a car driven by someone else?"
Find the predicted compensation and the residual prediction error for the CEO of Netflix, expressing both quantities in dollars.
This may be a profitable con game. Suppose that the psychic simply replies "boy" to all inquiries. In the worst case, everyone who has a girl will ask for her.
Consider t = -2.50 and t = -2.54. Which t ratio has the smaller p value? Provide a rationale for your answer. What does this results mean?
Compute the Relative risk (RR) of ADR with Drug A compared to Drug B. Show all calculation. Interpret the RR value. Do you arrive at the same conclusion based on the OR estimate and RR?
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