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In a county in Oregon, 25% of the population has not been vaccinated for the flu. I will sample from this population until I find the first person that has not be vaccinated. What is the probability that it takes until the fourth sample to find the first person that has not been vaccinated?
Let us assume that the average score in a class is normally distributed with a mean of 78 and standard deviation of 5.5.
a manufacturer of paper products wants to compare the variation in daily production levels at two paper mills.
During a typical Professional Golf Association (PGA) tournament, the competing golfers play four rounds of golf, w here the hole locations are changed.
Calculate a 95% Confidence Interval
A coin was flipped 60 times and came up heads 36 times. Determine the critical value you would use to test whether proportion of heads is greater than 0.50 at 10% level of significance?
a company that produces an expensive stereo component is considering offering a warranty on the component. suppose the
The dataset consists of data collected from a random sample of 60 students from one instructor in Stat 30100. Thirty students were randomly chosen
The proportion of people in the United States who speak Spanish is about 0.11. The distribution of sample count speaking Spanish in samples of size
The number of cell phone minutes used by high school seniors follows a normal distribution with a mean of 500 and a standard deviation of 50. What is the probability that a student uses fewer than 600 minutes?
Using the usual a = .05 criterion for hypothesis testing, would we conclude that the population proportion was different from the null hypothesis value?
Explain the difference between accounting(Book) value and market value. Which is more important to the financial manager? Why?
create the confidence interval for sigma2 using the data from problem 1 with 005. the endpoints of the confidence
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